Dropping my normals' MMR

Seriously, any good ways to do it?

I feel like a failure every fcking game that I play now and I only win if my team carries me... this is NOT how it is supposed to be... getting outskilled by literally everyone makes me feel like a little kid who is playing basketball with a club team... felt fun first few times, but now it just makes me want jump into the nearest dumpster and join the trash.

Does AFKing full games drop it? Anyone knows? Maybe there's some MMR dumper club where people just let the other team push mid from minute 1? Got any other solutions?

Please help me... I'm really not enjoying my games right now...