How to Deal with Overwhelming Emotions?

If you need better control over this kinda stuff, notice the signs. What happens when you get anxious, sad, mad, etc? Find some things you could do to calm down, leave the situation, and come back when you feel in better control. Like if I'm getting super mad, it's like "My heart is racing, I feel like punching something, I'm tense, etc. What calms me down? Baths." So I'll leave, take a bath, maybe write all my feelings out, and come back when I feel ok.

I wish I knew I had to do something similar with my biological sister because she was saying that I don't deserve to have my child a bunch of other drama