We can’t control what people say or do, but we can control how we respond to it. It’s important to always remember that no one can make you feel anything; you choose to feel that way. It’s amazing how a few unkind words or obvious negative body language can affect us. I’ve seen fairly successful and confident people wilt under the glare of another person’s disapproval. None of us are perfect and we all make mistakes, so only take constructive feedback to the degree that it helps you improve/grow as a person. If the feedback being given isn’t constructive, then learn to simply block it out or ignore it.