Please help! Self conciousness / anxiety when performing and singing! Help?

This Is How i Think Of It. Everyone here is here to see a great performance. they don't expect someone like meh to have a great voice. so im going to go out there and show them who i am. don't be scared because when you get scared people can tell And you don't do your best. if you go out there scared your gonna mess up, you will but if you go out there saying if i mess up they will laugh you wont! hope this helped.