Book about not caring what others think/social anxiety?

I need a book that can hopefully help me not care so much what others think. I find myself caring too much what people think even strangers. For example, today I used an antibacterial wipe on a shopping cart and felt like someone was watching and judging. When I go out to eat I literally can’t because the crippling anxiety that people are watching and what if I choke? what will they say?

So any book that can help with caring less and/or social anxiety would be great.