Would i be more successful if i become a one trick?

Is there any particular success to be found in being what is known as a "one trick" player? Recently it feels like im always doing particularly bad in even normal unranked games. I've never seriously played ranked in 5-6 years (by that i mean ive never cared to be ranked) beyond playing placement matches just to see where i'd fall. But with how rank is treated as the be all end all of respect, acknowledgement and worth, i feel pressured into playing it just to feel like im a real part of the league of legends community.

But i feel like now im underperforming more than i ever have while everyone else is has no problem getting multiple S rank performances back to back to back. I can't even remember the last time i even got an S rank myself. I dont know if im just burnt out or if I just have to say ill just never be good enough no matter what, but I don't want to believe that and give up.

Most of the successful players i see or hear being talked about are usually one trick mains of something even if its something off meta--which im not The most enjoyment i get out of playing league is playing its roster of champions instead of just 1 or 2 every game--its hard to conform to that for me. AT the most i try to main a role or two--marksman and support but never maining anything in particular; there are so many champions that i love. But i would want to try to if it would really work and help me improve to the level that i need to be. Can someone give me some advice on this? I would greatly appreciate it <3