It sounds like you are dealing with so much right now. Some things I find helpful are exercise (I do a zumba class and find it just helps me release some stuff) and good self-care, e.g. taking a nice bath with some lovely products.

I think you need to talk to your T about the email thing and find out why she's not replying so you don't just imagine it. I know it's hard right now when you're on a break, but it will be over soon. Can you write down some of your feelings so you feel like you're putting them somewhere?