Depression and loneliness

Sorry for being depressing but i have a problem i cant find any happiness or joy in life and im also very alone all i do is treatments eat sleep no girlfriend no friends nothing to do i just want some joy n happiness in this life of fear with this illness how do u guys find hapiness or friends or find someone to be there for u as a friend or even a relationship i would settle with something that givea me hapiness and takes away this loneliness thank you my health took a bad hit i just got out of hospital fter 6 weeks lung function dropped alot got it bk to with on 10% of base i hope i can get it bk to base having this ollneas has me worried and scared all the time thank u for help