You're not a loser--didn't you pass your exams, get a job offer, and have gotten your physical health back on track along with continued sobriety?
That doesn't sound like loser material to me--
But I get the feeling down and depressed cycle, as I'm in one myself.
Seems like it's been going around.
Keep doing what you're doing because it is working.
What's up with the gym lately?
I went and busted my tail a few days in a row and that seemed to help.
The situation with your parents is very difficult--don't underestimate that.
You love them but can't fix this, and that isn't easy for you because
you like to fix things--so do I--takes one to know one