PSA: You don't need to main yasuo/zed/riven to get to Gold

There's people in Diamond 1 who got there with only garen, warwick, and even xin shao, some of the most mechanically simple champions in the game.

There's no need to play mechanically difficult champions like yasuo/zed/riven below Gold because at that point you still need to learn about all the other aspects of the game that make a bigger difference to your win rate.

Mechanical skill probably doesn't count for even 40% of your wins. Timing, awareness, and knowledge of champion damage and limitations are what normally decide the winner.

So make life easier for yourself, play a simpler champion until you pick up the other skills I've mentioned above, and then branch into more complex champs if you feel like it.

Of course, if you play yasuo/zed/riven because you genuinely like them and aren't trying to improve your play, ignore this advice and do your thing. It's not worth playing a not-fun champion just to gain elo.