How do I get into the mindset of "it's okay to mess up"?

I have gotten in the habit of comparing myself to others and I never feel accomplished with anything I do. When I tried to accomplish something, I always end up feeling terrible at it and then I end up giving up on things I love because I feel that I'm not good enough at it and I'll never be good enough at it. I just don't know how to get over comparing myself to others and overcoming this fear. It has been holding me back from things I would like to do.<br><br>Any advice that you have for me would be greatly appreciated, I really need to break out of this mindset.