Am I Doing Anything Wrong // Need Advice

My past couple of games have felt.. hopeless. I try to stay optimistic, never type negatively, and always play until the end but I can't really ignore my past couple of games. It feels like everything is working against me because my past 3(+) games, I have had more than negative teammates (10+ deaths, low kp). I was wondering if there was anything I could do about this, or anything I should be doing differently?

Granted, I have had some rough games myself within my match history, however nothing crazy like these. I attached screenshots of my last 3 games as well as my op.gg link, any advice is welcome.

OP.GG: https://na.op.gg/summoner/userName=Th%C3%AEstle PAST 3 MATCHES (TL;DR): https://imgur(dot)com/a/ybJRKmo <--- replace dot, link wasn't showing all images :)