So Im gonna either get demoted to s3 or hardstuck s2, Advice?

So i'm currently on a 5 game loss streak and Not exactly hopeful for the future. I'm a jungle main and despite doing fairly well all early game, ganks, defending turrets stopping drags etc. I lose all the time because either A) our team comp is trash and the skill levels seem kinda even, B) someone feeds stupid hard and it's a stomp from there. or C) I get people that hardly know how to play the game or are first time ranked and tend to just be stuck in a 4v5. I ward fairly often counter gank a ton, attempt to contest objective unless we're ultra behind and it'd be suicide. and try to generally control the map but to no avail since we have a support who only wards right by base or not at all, or ward to try and break control wards that they know are contested I main rek and sion currently though I will probably be abandoning that ship because after 20 they are worthless for anything