All of us have insecurities. None of us are perfect, we have flaws, make mistakes. But always remember that no one should allow to judge you except you. Do not mind other people's expectation on you, their thoughts do not have any business with you. Don't be pressured by them. Focus on yourself. There are successes, there are failures. If you fail, that's okay, get up and make no mistake again. That's experience, that's life.