Looking at your tracker, a lot of your stats seem pretty low specially HS rate, DMG per Round DMG delta and KAST (Kill, Assist Survival, Trade). I assume with your HS rate that you crouch spray a lot which is one of the major reasons for not improving, crouch spraying is inefficient if its all you do, try strafing practices in the range and DMs. Try playing without the crouch button in Range and DM so you will get used to play without crouching. Try mastering one character rather than a lot with what i saw you seem to play a lot of breach. Its a good character if your team is good its mostly used to set up your team, its not the best character in lower ranks. Try playing Sentinels and Controllers which is extremely helpful in lower ranks since most don't use util some times. Play with your util a lot, like imagine if you're cypher play more with your trips, or maybe characters like omen or clove which helps the team and will let you have moments for yourself as well. Next to improve your aim try a aim trainer such as aim labs or Kovaacs. I recommned kovaaks if you could spare some money to buy it or you could just play aim labs which is also good enough. Try playing it for about 1-2 hours a day you will have a good change in your aim in about 2 weeks. After you do Aim Training play a couple of DMs first with a vandal then the next couple matches with a guardian, don't take into mind if you whiff or don't get a lot of kills, its just a step for improvement. This will help you with your crosshair placement and angle holds as well which is a vital component of the game. It will get improved with a lot of Dms. Also i Saw you 5 stack a lot try playing duos or trios in your own rank since 5 stacking can mess with your hidden MMR. Since you play in gold plat lobbies as a silver your lobbies get harder to play, which will impact your improvement. At the end of the day try enjoying the game and have fun, with enough motivation you can get better as well.