Close to quitting so took leave of absence instead now more depressed than ever

I’m just another depressed monkey from a BB who had multiple breakdowns since start of COVID. Things were so bad for me at some point I locked myself in. Depressed, anxious. I have always been the cheerful person with lots of friends. Now I haven’t seen any of my friends for at least 3 months now. Was very tempted to accept an offer to move into middle office at one point because I was depressed by the hours and the culture, but managed to stop myself.

I’m a frugal person but I can’t quit cos I do need the money to survive. Have requested a few weeks off to conduct therapy and try to sort out my life before I think of next move. My bank is very supportive since a lot of people have done the same thing before me since COVID happened. However, this has made me feel more depressed than ever and made me feel like a failure.