in ranked does your performance, like kda and overall gameplay affect how much your rating goes up if you win? like based on certain algorithms not just win/loss based on your opponent teams mmr and yours?

I was looking through my skin collection and noticed I have a lot of different skins for the the Vandal and Phantom. Is there a way to equip skins defense and offense? Or is it just the same skin all game?

I absolutely hate the valorant match making system. If I could piss on it, I would. Being a gold 2, I am constantly being matched up with ascendants (especially in unranked) which is bringing my morale down cuz I'm always being hard carried...