I don't personally have any go to's, but a quick google found this list:
https://www.mastersincounseling.org/resources/web-forums/ Scroll down to the mental and physical health ones for what seems like the most relevant to me.
However, in my unprofessional opinion, if possible, you really may want to look into therapy. Particularly exposure therapy can be extremely helpful in conquering fears. It's a systematic therapy designed to desensitize people to phobias, and it's among the most successful kinds of therapy out there, if I'm remembering correctly from undergrad. If therapists are among those you're afraid of speaking with, would teletherapy be a more comforting option? It might help give a feeling of distance which I hope could help, if that's the case.
If you're really looking for a DIY approach, then practicing mindfulness might be helpful. It can be very effective in dealing with anxiety in general, which might help. There are good workbooks out there; I used "A Mindfullness Based Stress Reduction Workbook" and found it helpful. I think there may be meditations on youtube you can follow as well, though I don't know how good they are.
If it were me, I'd call my doctor for a referral to a counselor. And please do NOT take anything I said as a diagnosis or absolute fact. I'm no where near qualified to do that, and even if I were, I couldn't from a forum post.