Do the things that interest you and do them with all your heart. Don't be concerned about whether people are watching you or criticizing you. The chances are that they aren't paying any attention to you. It's your attention to yourself that is so stultifying. But you have to disregard yourself as completely as possible. If you fail the first time then you'll just have to try harder the second time. After all, there's no real reason why you should fail. Just stop thinking about yourself.