I usually don't come to this area but your post touched me!
I understand the struggle and congratulate you on the fight. Great job!
It's difficult but takes time-ugh! Keep forcing yourself to do things; exercise like you wrote about; and immerse....yes immerse yourself with positive things.
Positive things:
1. Music (calming, happy music)
2. TV/Movies: upbeat; comedies
3. Nature (anything that you can do local)
4. Books/Magazines: motivational; spiritual
5. Animals (yours; volunteer; neighbors)
6. Get rest; eat healthy; exercise
7. Do not quit the things that you feel anxious about. It makes anxiety worse over time.
(take baby steps to confront your fears).....
8. Art (clay; painting; coloring book)
9. Guided visualization or meditation (look and search youtube.com-they have a ton)
I wish you the best....talk kindly to yourself.