Stuck in a rut

I feel really bad about this game. I loved it last year, got into ranked and started to climb and had a decent time, I started s4 and ended s5 last season but this one I got sent to bronze, got to silver for a bit and then continually lost until I was b5. I try to be a good player, but idk how to carry these game to save my life... It seems like nothing can get me out of this elo, I win two games and then lose 3 over and over and over. My teams are bad often but so are the enemies. I feel like playing ranked is totally pointless. I get that this has been a turbulent season but is it really normal to not climb at all? should I bother playing anymore or am I really so bad that I should uninstall? any tips would be nice, just terribly discouraged.