in my opinion, never trying is much worse than failing. if you never try to do something, you'll never have the chance to accomplish it. but if you do try it, even if you fail, you still have a chance to be successful.
failure is not nescessarily a bad thing; it shows us our mistakes and tells us that we need to strive to do better. never trying, however, is a lack of ambition or self-confidence which has no benefit. when you don't try something, you never have the potential to be successful at it, but if you do try, no matter how many times you fail, you still have the potential to succeed.