Carry out of Silver

How am I supposed to know what you can improve, I don't know anything about how you play. And literally any role can carry you out, thats the kind of game lol is. If you think you're better than your team generally mid or adc obviously and support the least. But everyone thinks that way. I'm going to go out on a limb and say the ranked system works fine and you belong exactly at the rank you are in.

play your favorite champ over and over till you are a god at it then learn how to either teamfight or split push then learn how to watch the map. boom you are now gold/plat

i found jungle got me out of silver, impacting objectives and pushing and getting map control goes a long way, i was an ADC main so i took kindred and it all slipped into place, i am now practicing more jungle as i love it.

Youtube videos to learn something you don't know or just practice I am stuck in silver as well 85 lp then back to like 16 lp for the past 40 games I'm gonna put all my time into practicing with normals for the rest of the season then next season i'ma just play ranked games until i'm gold. There is no tips and tricks the only thing you need is to improve your understanding of the game which is what I am personally working on. So yeah spam ranked until the end of season and watch some youtube videos on subjects you don't understand like when to push and when to teamfight (Small tip this is a lil harder but if you go to twitch and find a small stream with like 5 people and the one streaming is Plat+ (Always one tier higher) and if they are kind enough to answer your questions that is the best way to learn.) And after all that if your not gold then try again next season.

I mean you could always pay for carry or buy something like pro guides or whatever those websites these youtubers are getting paid for talking about. But paying your way to victory is just STUPID but that is the ONLY surefire way to get what you need... There is no op champion with 100% win rate and you will never have a 100% win rate. You could do what I did and post an essay explaining your problems and ask tips on how to fix them but that takes awhile. xD Find what works for you and do that you will get gold as long as you a trying it could takes hours days months years but you will get it as long as you try. Other than that ignore bot lane and most jg champions they are way too team depended.

Never play a champion in ranked you don't have level 6 mastery on?

Play top/jungle/mid any solo lane where you can impact the whole game

Barely ever talk in chat

Ping everything all the time

???

Profit

Honestly the best advice I have for you is play a champion you_ consistently_ do well on. If you're struggling to play a high-difficulty champion, try playing someone simpler, such as Annie in the mid lane, or Garen top, until your mechanics are good enough to perform well consistently.