Steamrolled every game

In the past two days I’ve deranked from plat 4 to gold 1 on dps. I’ve tried taking breaks between every 2 losses but then I hop on the next day and it seems to continue. I’m at 10 losses atm. Most of the time there seems to be a tank diff—I try to switch to mei to punish the overaggro enemy tank but I want to contribute more, I want to learn how to play with my tank better.

I really don't care about losing at the end of the day, I just hate feeling like I’m contributing nothing. My other main is ashe, and most of the time my aim is pretty good, but then I get focused/other half of the time I’m playing too passive?

I chose five wins and five losses I’ve had over the past day. Battletag is chocolateman, I main Ashe and mei.

Wins: BV9KZ6,CTHKDB,FKQ6WG,5864HQ,MCNZYB

Losses: B9WQWA,8VRFEN,RMQN7P,03K6QM,7P6XHH

I tried not to pick games just to make myself look good or where I’m popping off, I’ve yet to watch any replays but I vaguely remember each match.