Why people can reach master with picka like Jhin too, Ashe top, Aurelion Sol top, Aphelios top, Rek'sai top but I can't even get to diamond with my Viego top?

I am hardstuck platinum with hundreds of games already this season, and people making fun of it all the time when I play isn't helping either.

Why do peple even look at other players' matches anyway? How toxic, sad and bored must they be?

Anyway, here's the thing: I am a Viego toplane OTP, I reached p1 and was one game short from promo for diamond, my dream, but then shenanigans twisted me vack to p3, then p2 again, then all the way down to p4 0LPs here I am again.

I know my pick is absurd, I know that if I spammed matches over matches with Garen I'd easily climb in no time.. but I want to make this work, I need to make this work, I want to distinguish myself with a unique pick and playstyle: Dzukill and his Yone are my biggest inspiration, but then I see on HapoyChimeNoises channels people hitting even master with shocking picks such as Aphelios, Ashe, Aurelion Soo, Jhin toplane, and I'm left wondering: how do they even survive too with those MU monstrosities like Darius, Fiira, Gangplank, Sion, Riven?

Why can't I make it work?

Why am I so hardstuck, how can I keep going from p4 to p1 back to p4 and all over again and again, up and down, up and down?