It didn't make you noble to step away from something that wasn't working, even if you thought you were the reason for the malfunction. Especially then. It just made you a quitter. Because if you were the problem, chances were you could also be the solution. The only way to find out was to take another shot.
Give up defining yourself - to yourself or to others. You won't die. You will come to life. And don't be concerned with how others define you. When they define you, they are limiting themselves, so it's their problem. Whenever you interact with people, don't be there primarily as a function or a role, but as the field of conscious Presence. You can only lose something that you have, but you cannot lose something that you are.