I need help picking a main role
I'm fine playing one specific role and specific champion in that role over and over as long as I win. But the second that I lose a game I switch roles for some reason. Mainly because I think that I feel that I need to try something else to try and win. I want to get better at this game. This last season I went from bronze 5 where I was placed to silver 4 and then back to silver 5 0 lp because now I can do nothing but lose no matter how many times I take a break. My goal for season 8 is plat 5 and everybody I talk to says that I need main 1 champ if I want to climb but I just can't seem to do it because I either get bored or frustrated. Can anybody help me? Right now it feels like I'm actually just horrible at this game. I want to believe I can get better but I'm losing hope.
tl;dr: I'm bad and I want to get to plat next season but I can't main a champ cuz i get too bored or frustrated.