I'm sorry you're going through alot of shit right now.
One thing I like to do to de-stress is to write things down. Lists upon list. Mark things off. Add things. It helps to declutter my mind while actively getting things done.
I've been there, ugh. Gentle hugs. I used to wake up around 1:30-2am with my heart pounding and in the midst of a panic attack. For some reason it helped me to ask myself, "what exactly am I anxious about and can I do anything about it right now?" It's an awful feeling for sure.
Added fun if you're afab: if you have no stressors you're aware of, go see a doctor. Feelings of dread and heart racing can be indicative of cardio problems, we present differently to amabs