@evanderyg sorry to read of your troubles, it seems the discussion about intros got a bit out of hand. When you get a moment, please try to remember your old username and add that in the intros thread. 
To your question, which I understand is very important, this is quick and easy, and very powerful:
If you don’t want to work with an angel at all, try this:
Onbviously, see a doctor or seek other qualified medical advice; it might be a good idea to check there are no problems with electrolytes, panic attacks, over-use of caffeine, or salt, etc., causing this problem. Try searching online for information on these things, remember to read a few different viewpoints and don;t just jump into the first advice you find!
If you can find some kind of activity you find relaxing, whether it’s watching travel videos or ASMR on YouTube, something you can feel makes the tension relax from your body, that should help and is unlikely to do any harm.
Do you have books? I mean paper, not on your phone. A good book can help calm your system down.