Stats

If you are silver, controller main and willing to improve, Id suggest watching some pros that play smokes also.

Things that probably will help you a lot are:

Crosshair placement, having your crosshair at head level is game changing, valorant makes it easy as most maps have some lines on the walls that indicate where someones head will be.

Awareness/pathing, know your angles, like you should know that if you sprint out of bind bath as an attacker, you will be open to at least 4 common def positions. Understanding the "flow of the game" also helps a lot, but you will get that from playing and watching games .

Learn to comm properly, and if you dont already, try adding people that are nice and you feel have the same goal as you. 5 stacking at lower elos is really goated.

But also, not everyone is good at everything, take it easy and enjoy

then for you kast is a big stat, i guess kd ratio but having a bad or good kd does not make you a bad or good player - more importantly, play your role properly. just do good smokes, stim your team up on executes and rotates, molly common rat spots or to stop enemies pushing you, maybe even learn post plant lineups for bomb. that's WAY more important than stats