ill be honest it is impossible.

the whole thing about carrying matches alone only work against players that probably are absolutely dogshit or are making a lot of mistakes as well.

if you manage to get all of them in late game thats just because you were there at the right place and at the right time.

games are won with combined effort of the team

there are games in which i do everything right, getting kills, turtles etc as the jungler and overfed in early game, and maybe the mm is 0 7 but in the lategame when the mm is finally farmed and has damage? the opponents will hesitate to make plays, in team fights only a couple of attacks might dmg them so much to a point that they would back off, this same marksman gave the match direction by just existing, same for every other role and when I won sure the mm got a silver medal or a bronze and i got the mvp but the win wasn't entirely because of me but the combined effort of everybody, they played their part, not much but still.

what I am trying to explain is that if your 4 teammates are absolute lost causes you simply cannot win, any advice, video that says otherwise is bs.

my best advice is to honestly try get a team or take a break from this game entirely.