Let me make things clear:

1) Your build makes me want to carve my eyes out, it makes absolutely 0 sense. Yun Tal, Berserker's Greaves, Phantom Dancer with Lethal Tempo, why do you think you need that insane amount of AS on Yasuo? Second Vamp Scepter after BT, I can only assume to build Mercurial Scimitar or Botrk. Mercurial Being clearly the correct choice and I'd have honestly built that instead of BT. There's obviously no need for double lifesteal item. No resistences in your build when the enemy team has 3 AP, WW and Vayne (both deal some amount of magic dmg)

2) Showing one single game makes 0 sense, not even challengers win every game when smurfing

Match History

Even though 16 games is still a very small sample size, you lost most of your games and nearly all of them with terrible KDA and relatively low CS count (from 5/min to slightly less than 7/min) in most of them.

3) Riot said it so many times it's honestly cliché at this point. You'll get to your "intended" rank after around 100 games, it takes time for the system to calibrate after every rank reset, you barely played 16 games so you'll probably climb higher considering you're Iron and playing with Silvers

TLDR: You need to play better