One suggestion: Try meditation. It calms you down and clears your head. If you can meditate 10 minutes in the morning and 10 minutes in the evening, I think you could feel a lot calmer very quickly. There's lots of guided meditations on the internet, just listen to a few and pick one you like. It is amazing how quickly you can calm yourself through controlled breathing and guided imagery.
It also can help with the difficulty we all face more acutely than normal in this situation, which is living in uncertainty about the future. Staying in the moment is part of meditation, and it can help you learn how to allow a feeling to occur without following the urge to make a decision just not feel so uncertain and in limbo. It's a difficult place to be, but without patience and tolerance for it, we'd be making rash decisions or go back and forth like a rudderless boat.
M 16 yrs, WH62, P54 3 adult blended kids EA 11/13, BD1 6/14 PA fall 14, BD2 2/15 Piecing 2015, BD3 12/15 Separated 4/16 WH moved OW in 5/16 Divorced 6/15/17