Ooh i feel in the same boat OP.
What i've decided is to work on the vey basics (this might seem pathetic to some but i really struggle with things other people dont even think about)
Number 1 on my list and i think the most important is sleep. I dont sleep. I have been a sleep avoider all my life but much worse in the last 6/7 years. It affects everything. So i am trying to develop a normal evening routine that gets me to sleep at a decent hour so i feel human the next day. Not doing well so far but better than i was.
Number 2: work
I was out of work and very depressed, house a shambles, no motivation to do anything. I had it in my head that whatever job i took on had to be a money maker (to solve all my problems of course!
) and so was stuck from the start, because you need experience/qualifications/a commute/24 hour free childcare to have an awesome job like that. On a whim i applied for a 12hour retail post as i was shopping in my own town one day. Thinking it will do until the better thing comes along. I got the job and actually i am very happy. They pay is minimum wage and i still get benefits To top me up but it has provided me with routine, a few new friends, bit of a social life, pride in my appearance again, self belief, motivation.
3: exercise.
Right now for me that means taking a wee walk when its dry and i have time. I would love to do something more routinely and effective but no childcare, little money, embarrassed to join a class etc so im not able to yet. A wee walk makes me feel better than doing nothing. (Could you try a gentle yoga video at home?)
- Do what i feel like doing.
For too long ive done nothing. I kept reading threads on here where people said "get a hobby" "what do you enjoy". Truth be told i had no idea what i enjoyed. I watched soaps, facebooked and MNetted. That was it. Then someone suggested doing a free online course. So i had a look, found some that interested me so i kept going, then I found (by chance) on pinterest some lovely vintage glassware and thought i'd love to have a collection. Forgot about it for months then found it again and decided to treat myself to a bit, then a bit more and now i have a few pieces. Voila! I have two hobbies!

oh and tom hardy. He's another hobby. I collect all his movies and tv shows on dvd and photos on pinterest. I'm also rebuilding my childhood/teen music collection as well as other music from different eras that i enjoy. There are probably other things i do to pass the time that count as hobbies but i cant recall them.
Mightnt be any use to you but i certainly feel generally better about life than i did a year ago. Hope you can take something from your thread and feel a wee but better about even one aspect of your life
its shit, i felt like i wasnt living for a long time. I really hope you can start to feel better soon.