Started in ranked,now I have it in normals too

So my mmr is broken in normals too (I don’t play ranked anymore,I am waiting for this season to end) because I tried to learn jungle (I am a lvl 6 kindred now and play camille rarely) 1-2 months ago and because I sucked until I learnt it (not perfectly)my mmr died.Since then I am being matched with 30-40-70 lvl and sadly not often at all with 100ish.I lose most of my games because my team will feed or go 1v5.This is a joke like last game I was playing illaoi (3d day of practice) and I said “focus Kled” who was a zero on lane.Then sylas decided to go 1v5 to kill Kled.I even walked throughout the map and told them to follow and we killed 3-4 of them.We still lost.Kayn ulted our Caitlyn right after I casted my ult (normal) and she LEFT THE AREA which was full of tentacles.I killed kayn after he killed her but she could have been alive.That was just a story of my last game.I don’t know anyone else who has mmr problems with normal games but I swear I really sucked at jg but I had to learn it and then someone told me there is actual mmr in normals too and my hair fell out.I try to improve and practice practice practice (I have started to land my e right at illaoi for example and help my team as much as I can) but I feel like no matter what I do ,I will lose 15/20 games.And I almost never feed in laning,when it happens it is because we teamfight with fed enemies who will destroy us anyway.So if your mmr is dead in general,I feel you.