Not to make light; but, hypothetically I think J.O.Y. is a helpful remedy:
Put (J)esus first in your life...walk with Him...talk with Him about everything!
Make (O)thers second...find someone with a need, and help them...pick your niche...helping youth, the elderly, etc...
Take the focus from (Y)ourself, and choose to see the many blessings your life holds, even if you have to dig deep to find them. While putting yourself last, remember to eat healthy and get plenty of rest and exercise. If you are on meds for the big D, seek help weaning yourself from them as you feel progressively better.
Peace.