Sorry you're struggling op 
I second knitting, really helps when I'm tense gives an outlet for nervous energy and something to focus on that doesn't take lots of brain power. Also tactile nature is soothing and it it's productive which helps when I'm feeling stressed at being unable to get things done. Crochet is another option and some people find it easier.
Avoid alcohol. Avoid junk good, eat a proper meal a day. My blood sugars definitely affect my anxiety.
Focus on rest and don't feel bad at prioritising it.
Do what you need to to make yourself feel safe in the moment.
Gentle exercise - I'm not always up to yoga, especially if it means dressing in gym stuff, leaving the house and joining a group class. A walk in the fresh air always helps though.
Soothing music - whatever works for you. Classical, acoustic, nature sounds, whatever.
Just bought some loop ear plugs and they actually help too!
Comedy. I can't stomach anything tense or sad when my anxiety bad, but sometimes find comedy really breaks through my mood and makes me laugh, takes my mind off bad thoughts. Love YouTube for this.