Struggling with getting out of isolation

Long story short i left school last year in december due to my mental health rapidly declining and since then i have lost all of my friends while i’ve been attending therapy. After i lost my school friends i still luckily had an online friend of three years but we sadly grew apart and now i’m just finding it difficult to make new friends. I’m thinking of looking for a part time job close to home so i’m at least earning money and socialising but i’ve not had any luck so far. If anyone has any advice or is in a similar position and is looking for friends i would love to talk to some of yous. Thank you.