I read a popsci book about music + neurology once, and basically the only thing I remember from it was this exact sentiment. Singing and dancing are basic human functions! You don’t have to be good at it! You are allowed to sing! You are allowed to dance! You are allowed to have fun singing and dancing! Don’t let anybody tell you otherwise, including yourself!

And I think this applies to creative acts in general, even those that require more than just your own body. You don’t have to measure up to some arbitrary standard in order to have fun singing, or dancing, or drawing, or writing, or whatever! Humans are fundamentally creative, expressive creatures! Embrace it!