How to deal with chain losses?

Hey Guys,

Im a ornn player currently sitting at plat 2, i recently had a bad 7 losing streak and i feel like i cant 1v9 as ornn if my teammates arent good, i usually win my lane 2/0-3/0 but see the enemy adc and mid is fed and i really feel useless in these games, today i took 6 games i won 2 and lost 4 the 2 i won was barely wins we were behind but got into a lucky fight and ended idk if my matchmaking is ruined cuz of my chain losses but i really do not enjoy league right now and my mental is really bad in game after these games the second i hear my teammates dying it tilts me a lot idk what to do

(I generally always mute chats to stay positive but it doesnt help)