my life is in pieces, any advice would be so appreciated :)

Hey guys, im 22 years old from the UK, currently living in my grandfathers spare room (he is an alcoholic who sleeps in the living room and refuses to do anything around the house so i have to pick up the slack) as I had to give up my apartment to move 2 hours back home due to being kicked out of university 3 months ago, i have a job (barely, ive not been in for over a week due to my mental health) im just about getting by financially and facing some major mental health issues which were manageable until i moved away from university. Im lost, lonely (i have no real friends in my home town, just friends that think supporting me is to try and get me to go drinking all the time with them) im just looking for some advice from some kind people who have faced real hardship and what they did to come out of the other side. ive genuinely never felt this low in all my life, im scared im gunna loose my job because even waking up is a challenge, but i just dont know how to sort my life out, if i have no job then that stops me finding my own place, but if i keep going to work then ill probably do something i regret.

Thank you all for reading, i appreciate its long winded, but some advice would honestly mean the world to me. :)