Behind every success or overnight sensation is usually a long list of mistakes and failures, don’t give up.
I don’t know about you, but I’ve learned far more from my mistakes than successes. When I succeed, I usually expected to, whether or not I knew if I had a chance. It usually is a result of optimism and confidence, but we all have that if we want it.
The corollary to this is whether you learn from your mistakes. If we’re alive, we’re going to make a mistake sooner or later. Not doing it twice, especially on the important stuff is the key. Learn from it, but don’t dwell on failing. Dwell on succeeding by not repeating the past.
Knowing what is important is the next key. Start with people. If you’ve made a mistake, admit it and try not to let it be a hurdle for you. If they’ve made a mistake (and harmed you in some way) learn to forgive. Also, learn to move on. The faster you can do this, the less you will be bothered by whatever it was. Don’t let anyone live rent free in your head