Which is worse, failing or never trying?
As I think most people would answer, I think it is worse to never try. If you try and fail, you may beat yourself up that you failed, but hopefully one day you get over it. Then you have a life experience that you can pull from or you can actually offer advice and help other people.
If you never try, you can't feel bad that you failed, but you may have regret that you can never get rid of.