Another thing that's worked for me is using binaural beats. It works especially well for anxiety and stress.
It plays a different frequency sound into each ear and the brain interpolates a third sound that kind of fuses the two. This can be any pitch, the binaural beats part is that they are separated by a specific frequency, usually based on the wavelength of brain waves associated with a particular activity.
6 Hz is a sweet spot for me, it's a wavelength our brain produces when it's in relaxation and transitioning to sleep.
Like the sound machine I mentioned above, it works best for me if it's a low frequency, so I use one with 2 low frequency sounds, separated by 6 Hz.
https://music.apple.com/us/album/6-hertz/1652720399?i=1652720401
@troph If you are comfortable talking about it more, I'd be interested in hearing more about your experience with ketamine infusions and the stellate ganglion block. My doc wasn't very receptive when I brought up ketamine infusions.