I got a therapist for this same type of thing - it really does suck. I felt like I was going to crawl out of my skin all the time. The right therapist can be so helpful. My mind still races, but I automatically use the SOBER technique now without thinking through the acronym first. Or I name the issue “this is avoidant - what am I avoiding?” Or I ask “how can I reframe this?” To stay in the moment, I use a sensory exercise. Seek a therapist who will TEACH, not just sympathize.