"It's okay to not be perfect. It's okay to make mistakes. It's okay to do something that you hadn't done, because if we don't do those things, we never grow." -Dawn Stanyon Most important thing to do is to learn from them and move on.
Jealousy comes from counting others' blessings instead of our own. So very true, don't let your life pass by while you worry about someone else, count your blessings, be grateful, be happy for others (even though it can be hard).