This is a great article by Bryan Hutchinson at Positive Writer about worrying too much about what people think when you do your writing. You could also apply it to many other things besides writing. I am guilty of this but have worked through it.
Now I write for me because I need to express myself creatively as that's part of who I am. If others like it, great but it's not the main reason. If it was, I would have given up years ago.
Often people are too busy with their own agendas to notice what I'm doing. I get that. I can't always focus on everything they're doing either.
I do enjoy sharing with other like minded creatives because we understand each other and appreciate each others' efforts.
Have you created something or done something without worrying about what others think? It's very freeing when you do! Try it!