How do you get through burnout/depression and stop raging at everything? Type 1 since 2007. Year I graduated high school.

Ive been type 1 since I was 18, and for quite a while I had it under pretty good control. For about the past three years I’ve just kind of.. caved? Given up? Stopped caring? Between constant fighting with my healthcare insurance doing their best to ignore me and actively not cover my supplies and endo visists, slight weight gain, being cheated on, and non existent self esteem, I’ve found it almost impossible to even try to care anymore.