Welcome to SR......I can certainly relate to your anxiety....I've been there many times.
I'm glad to hear that you have a support group and therapist. If you're able to increase therapy sessions or attendance at your support group, that might help.
I always find myself wanting to force a solution when I get very anxious. Breathe deep. Talk to your support systems and the folks at your sons program. This doesn't have to be solved right now.
Glad you found SR....lots of parents on here.....we understand.
gentle hugs
ke