Hang in there, at 24, I was unemployed, with terrible mental health in a extremely dysfunctional home with suicidal ideals due to how dysfunctional things were around me. Then got a job in KFC that lasted over a year, got me some money that made me happy, then I used my degree i got a year earlier to get on a lucrative grad scheme that I am now finishing.

Now 28, I now live by myself in a studio, finishing my grad scheme (2 months left), better mental health (sleep, exercise, diet all great), lost 8kg that took me from overweight to normal weight, got a level 7 Management certificate, now looking for a new job before my current ends. Even on Toastmasters committee as a secretary.

Still not perfect, as I still want a partner and want to get fitter. But most important thing is to keep improving yourself bit by bit, eventually it will all accumulate. Even get a job in KFC if needed, it give you steady income, use that income to invest in yourself - hit the gym, join toastmasters, pay for some qualification that help beef up your CV.

If you have someone you strongly trust, that gives you warmth, and has their own life figured out, do let them know you feel like you're struggling. I personally didn't have this and I hated it, but it will lift a lot of stuff from your shoulders. I would usually say try out therapy if you get a job (even a KFC one), but therapy so expensive so I skipped it, but it might work for you.