You learn by committing mistakes, don't regret when you have done much mistake that enables you to learn more. You'll never know right and appreciate other things if you don't have mistakes.
"There are two mistakes one can make along the road to truth -
not going all the way, and not starting. "
-- Buddha
"There are two mistakes one can make along the road to truth -
not going all the way, and not starting. "
-- Buddha
Other idea..
The biggest mistake is not that you have done it, but the fact that you haven't tried it.