Off the top of my head I figure you might be able to get over this using a technique based on increments. Kind of like putting your toes in the water rather than jumping in the deep end. It would require a plan and increasing exposure by taking 'baby steps.' Get comfortable addressing a very small group of people, say 2 or 3, then 4 or 5, etc. Different circumstances, evaluating logically as the self-directed therapy progresses what the next step(s) is/are. I figure you can get over it, if you really want to. Completely over it. You are all about attitude, I know that because you said so. Whether you do this depends a lot on how much you want to. You may not care enough. Or, you may actually prefer to be the way you are. That might have benefits. Sometimes people have difficulties doing certain things that arise because those "difficulties" serve some other purpose(s) for the individual.

That's always something to consider in evaluating personalities.
Yeah, over the years, I've seen a therapist, done exposure training, tried cognitive behavioral therapy, etc. I've been presenting publicly for over 20 years & it's never gone away or gotten better lol. There's just some kind of built-in biological response in my body to these types of situations that I've never been able to figure out. Mentally, things like public speaking doesn't bother me at all...I'm a super chill person IRL & love doing training on topics I like (I do professional training in IT & business efficiency, plus give stuff like cooking classes outside of work to groups), but the neurons in my brain act as some sort of in-line filter for making life more difficult than it needs to be!
It was the same with my Paruresis, except that magically (thankfully!) went away via a seemingly unrelated medical treatment. My histamine treatment eliminated my day-to-day anxiety, but I can still get automatically triggered pretty easily when I have an upcoming speaking commitment! On the topic of the SIBO treatment, the gut microbiome is under HUGE amounts of study these days. They've done a ton of studies on anxiety & its relationship with the gut-brain axis:
Research suggests that disturbances in gut microbiota — the good (and bad) bacteria and other microorganisms in your gut — are tied to anxiety disorders.
www.everydayhealth.com
Microbiome and Anxiety Is a 2-Way Street A scientific review published in May 2019 in General Psychiatry suggests that gut microbiota regulate brain function by way of the gut-brain axis, a communication network through which the brain can influence the gut and vice versa. Preliminary evidence shows that imbalances in gut microbiota can exert a powerful influence on the brain via the gut-brain axis in ways that affect anxiety. What’s more, disturbances in neurotransmitters — brain chemicals that send signals throughout the body — may play a role in psychological conditions like anxiety. This connection is important because, per research published in June 2021 in Nutrients, gut microbiota are believed to help regulate neurotransmitters.
So it's kind of like we have a fuzzy-logic AI system between our minds, our brain (a separate machine from our mind), and our bodies, which manages emotions & other communication signals, but sometimes gets blocked based on things like unhealthy gut microbiomes! My friend had me talk to his teenager a few years ago about her anxiety, which she had had for a few years but was getting worse. Turned out she had a brain tumor! They were fortunate to get it identified early & had it successfully removed, which eliminated her anxiety! So sometimes there are just goofy things in our body that act like hot branding irons, which bypasses our thinking processes & our choices about how to deal with things!
I still do presentation work all the time, but it yuckos me out pretty good due to the automatic physiological response I get. Wish I didn't have to deal with it! I get through it, but I sure don't enjoy the negative effects lol.