Getting comfortable with yourself is a tough thing to do.
But you can do it.

First thing you have to try and and accept is that you're in any given social situation because others present value your being there.

You have value. You have worth. That, in turn, provides you with a little confidence.

Second. Try and figure out what exactly it is that makes you feel uncomfortable in those kinds of situation.
Perhaps it's because others seem to be able to talk with ease and maybe that's something you find difficult.

A good way around that is to be 'armed' with questions.
'Small talk'.
Odd psychological fact: Most folk tend to like it when others (in their peer group especially) notice 'positive' things about them.
Something they're wearing. Change in hairstyle. Make-up. That kind of thing.
So mention it.

Thus, you've fired the first 'social' shot. And unless they're gobsmacked they know that 'socially' speaking, it's their turn to respond. Either out of politeness or maybe they'll pay you a compliment in kind !

There's your conversation starter.
After that see where it goes.

Self awareness is one way. Become self aware of the fidgeting and try to stopcock it. Work on your eye contact and spend more time in social settings, try to get used to feeling comfortable. It’s hard to explain but like start working on it now and overtime you’ll get better at it. Read books on body lanaguage

I really want to help but I’m so exhausted! If you have anything questions 😬I’d be happy to help

dont worry about it.. just do what you do..

Are you trans ?

just think you have a black man's peenus and they all wanna suck it under the moonlight