I'm not worried about the mistakes but I'm when I don't commit oneWe are humans, not robots so, we commit mistakes. The errors that a human commits are not failure but the stepping stone towards success. When we commit mistakes it only reflects how a particular thing can be done in a better way. Human errors enable us to make things better in the next attempt. It is ok to make mistakes. People strive for perfection but still commit mistakes. It is entrenched in humans that we commit errors and then rectifies them.
It is almost difficult to avoid mistakes and getting messed up or commit errors in life. Don't hesitate to do mistakes because they will only make you better. If you aren't committing mistakes you are not learning new thing.