Hate to quote anything Bieber but never say never. Although it was a bond title with Sean Connery first so that makes it awesome to say! (with an "again" stuck in there)
I say that because SAD makes it seem like never, but doesn't have to be. Never should first be stricken from your vocabulary except for the very obvious and sometimes even then! I understand not thinking you're good enough, or will be a disappointment, and rejected or ignored or laughed at. I'd hope you'd vette the person prior a bit, try talk a bit before meeting in person. Doubtful to be laughed at.
Now, rejected or ignored - I fear the ignored part more, which is basically a form of rejection. I feel they'll immediately see all my flaws and if I know them online or something I won't live up to supposed expectations and disappoint and bore and fail.
BUT THATS the SAD thinking FOR us - skewing our expectations and reality! You miss 100% of the shots you don't take. Easy to say that, harder to go line up and take the shot. A key is not putting all eggs in one basket like, this person I barely know, whatever occurs will make or break me if I get rejected that's the worst that can ever happen to me! MAY FEEL THAT Way - but not life or death, will get over it eventually... and then there's the chance you WON'T be.
The best thing is start slow I think - contacting them does that mean meeting? Talk a little, maybe that's all. Scary enough to do that. But you can do it!
(But I share a lot of the same fears, my medicine has been avoid, not a good one to take long-term, many do so though feel as you do, so not alone there
