4 months ago I quit cs due to being burnt out, returned like 3 weeks ago maybe.

My previous match making rank was mg2, now I'm borderline sem, very humiliating if you ask me.
I'm doing regular warm up routines of training aim(reflexes I believe it is), prefire maps, aim botz, and FFA community servers. I seem to too frag most games, maybe 7 out of 10 and I try lobby with friends so I don't get out with toxic/shitty people, but I literally find myself still losing 6 out of 10 matches..

Anyone have any sorta tips or whatever