This is a tough one. For me, I found a moving meditation last year called Qi Gong. It has helped me get through this year. It is no cure, but for someone with autism, like myself, it seems well made for me. I could never do meditation. While it worked, I always found it boring. The movement in qi gong, helps to keep your mind occupied while meditating. The slow movements help to calm you as well.
Breathing exercises like Box breathing can help. That is what I was doing before Qi Gong.
There are other stress relieving techniques that can be found with a quick online search.
I hope you had a nice holiday. Good luck.