Hi, i already made some build for Yasuo so this will be whole guide.
Ill try cover everything and let you know how you can win your lane without trouble.
If this guide help you you welcome if not at least i try.

Pros:
-Good damage
-High outplay potential
-Can carry solo if you are good
-Double critical chance

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Cons:
-Hard to take out full potential of champ
-Requires much skill to be really good
-Enemy will probably focus you

[*] We choose Summon Aery because of early game its provide you damage just like Press the Attack but no need to stack ,its also do more damage in early game then Press the Attack or Fleet Footwork.

[*] We choose Nullifying Orb because it will provide you shield for magic damage its very useful thing and its only choice, you have no mana for Manaflow Band and you already have low cooldown on ultimate so you no need The Ultimate Hat.
[*] We choose Celerity because the movement speed will help you with your positioning in team fights and give you some attack damage its very useful rune.
[*] We choose Gathering Storm for mid-late game its provide you damage so on full build you wont stop getting stronger.

The remaining points are put in the Domination tree, this will grant you a lot life steal and keep you safe on lane.

[*] Chose Taste of Blood for life steal on early (and late) game its probably save your life more then once.
[*] Chose Ravenous Hunter because you don't have much life steal items only Bloodthirster so when you stack this rune you will get more life steal you will probably need this.

Also possibilities for second rune tree is Resolve that can provide you safe lane faze.
If you take resolve you should take:

[*] Chose Bone Plating because that will provide you safety from enemy combo its kill damage from enemy so you wont get whole damage at your self very useful.

[*] Take Second Wind because it's will keep you on lane when someone do damage on you its will heal you back combine with Bone Plating and you can stay on lane for long time.

Well hire i will explain my build why you should take whatever you take.
[*] at first recall take Ninja Tabi if you play vs ad it will provide you safety and movement speed on lane you wont have attack speed like with Zeal but you won't need it that early.
[*] As always your first real item will be Phantom Dancer you take it for much reason its provides you attack speed critical strike and with your passive
Way of the Wanderer will double your critical strike and also you will get more movement speed.
[*] Second item Infinity Edge is probably most important item in whole build it will max your critical strike and its will get your critical strike stronger not just with ad also it provide you 50% stronger critical (250% instead of 200%) and because you have 100% critical chance its very useful on you.
[*] Third item take Trinity Force its really good item because it will provide you real damage its will give you stronger Steel Tempest because of Sheen in Trinity Force its give you health,movement speed, damage because of Phage and it will provide you attack speed and cooldown reduction and because of Ninja Tabi instead of Berserker's Greaves you will probably need some extra attack speed, cooldown reduction will help you with Wind Wall and Last Breath.
[*] As forth item there is Bloodthirster it will provide you life in mid-late it will give you shield some real life steal combine with Ravenous Hunter and Taste of Blood you will easy get out of fights with high health.
[*] As last item you maybe should think what to take ,its mostly situational item take Maw of Malmortius to keep you safe of ability power champions combine with Nullifying Orb will give you real protection from ability damage but its not your only choice.
Also items you can take:
[*] Frozen Mallet is very useful item for more reasons it will give you hp to survive very easy fight it will provide you slow by 40% and with Yasuo you will need it (he have no much cc
so Frozen Mallet can take him much ahead.
[*] You should take Guardian Angel if you are fed and your team really need you so Guardian Angel will make difficult to enemy kill you.
dusk blade If enemy have some real tank in team someone should kill him take Dusk Blade for armor penetration and damage.

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R>E>Q>W

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Q Steel Tempest use to poke enemy,
stab him through the minions so you
don't get minion aggro on yourself.
(Max third)

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W Wind Wall use to defend from any
missile attack good vs ad carry's and skill
shots time it right it have big cd on start
(Max Fourth)

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E Sweeping Blade dash through the
minions use it to positioning you self
in lane and team fights.
(Max Second)

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R Last Breath deal damage try don't do
it on one player in team fights good with
Malphite or Zac ultimates.
(Max whenever you can)

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[*] Flash is spell you will take every game on Yasuo its help you with standard things and can help you with combo if you are fast enough with Sweeping Blade, Steel Tempest, Flash combo it will provide you low reaction of enemy you are against and free Last Breath.
[*] Teleport is also good spell on Yasuo but this one isn't for 100% games you take Teleport if you wanna gank other lanes or fast get back to your lane it can help you go ahead on lane faze.
[*] Ignite take when you have some healer in enemy team or when your enemy is life steal-er so ignite can delete 50% of that heals very useful 1 v 1.
[*] Exhaust take when you have some hard ad on lane, like Vayne it provide you slow and -40% attack damage from enemy so that is very useful 1 v 1 or in team fight's to kill ad carry's damage

-Early game: In early game with this runes you are strong but don't be too greedy poke through the minions don't let minion aggro on yourself. You can be really aggressive in push
but always ward don't let enemy jungle to gank you easy 1 Control Ward on your side and one Stealth Ward on enemy side.
-Mid game: In mid game you start be stronger if you use minions no one can beat you 1 v 1 so expect gank from enemy's use wards and split push if your team losing go help them you will still do objectives and you will help your teammates to they can comeback. Ask jungle to do Rift Herald if you are already pushed your lane let Rift Herald on another lane global gold will help to your team and you.
-Late game: Late game is time when you can carry and have probably most damage in game.
If you have someone for combo that's really good for you let someone engage for you go in and ult much people as you can. One good ultimate can win the game!

-Poke in early game is important poke through the minions with Steel Tempest, when you get stacks on Steel Tempest do combo on enemy Sweeping Blade, Steel Tempest knock him up and get out on minions with Sweeping Blade.
-While you push don't just do basic attacks you can make it faster. You will need while for master it but its not so hard. Just after basic attack, do the Steel Tempest like that you will cancel your animation and you will attack again do it whenever you have Steel Tempest and you will push twice faster.
-Combo: This is hard combo and you will need be fast for that you can practice it in practice tool, after you stack Steel Tempest do Sweeping Blade, Steel Tempest, Flash and Last Breath this combo can provide you easy kills.
-While you farm use your Sweeping Blade for it its will make you easier to last shot minions.
-Dash over wall: at most camp in jungle you can dash over walls and like that escape catch someone, or simple come somewhere faster. Camps where you can dash over walls: Gromp, Krugs, Raptors and Murk Wolf (on small wolfs) (but not anywhere just on low parts on walls).Also can practice this in practice tool.

-Team work is really important on Yasuo try have some premades in jungle with some champions with knock up like Vi, Malphite, Zac, Jarvan IV, Wukong. Ultimate combo is important in team fights. Also try to use Teleport to gank with your jungle,
example Teleport on bot jungle knock up enemy's you use ultimate get some kills and help,to push bot lane.

WARNING

-Don't use Yasuo or any other champion first time on ranked games don't ruin your and other people game!!!

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-In rank games you can pick Yasuo:

-If have already tank in team.
-If have at least 2 champs with good cc (and some of them should be knock up).
-If jungle or Support can engage because Top(you) can't.
-If you are sure even if you fail early you can comeback in mid game.(don't ruin someone game)

-Farm is important in every Yasuo game (like 80% other champs) for farm last hit with Sweeping Blade and Steel Tempest.
-If you kill your enemy push your lane fast and go back,if your minions are still under don't Teleport back on lane walk , so you will have Teleport for gank, or 1 free back.
-For push Sweeping Blade, Steel Tempest combo is perfect fast really strong clear.