(((ReddSN)))
I can empathize with you. That is hard.

I've had to let go of the toxic relationships that I have, which leaves me pretty much alone. I do have my 2 daughters (part-time) and a boyfriend, but that's it. I was just filled with such resentment, guilt, anger, self-hate, and so forth ~ the couple of friends I did have couldn't take me anymore. And I couldn't take my family anymore! ugh...
Staying as busy as possible helps me. Chores and exercising, while listening to music, crossword puzzles, word search, escaping to my spot of peacefulness (in my mind). It definitely calms me down when I imagine myself at that spot. A beach, or in the mountains, alone. Focusing on all I can see, hear, touch, taste, smell in those spots of peacefulness for a few minutes is all I need in the intense moments to bring me down a little bit. It makes life more manageable for a little while ~ and then I do it again when I start feeling overwhelmed again.
Best wishes to you ReddSN!