Here is my view on this. What is right? What is wrong? Who decides what is right and wrong?
And here is a question for you. Remember the person you were at say, age 15. What if everything was plain sailing after that? What if you never lost a friend, recovered from a broken relationship, made a career choice that made your heart sink rather than sing? You get my drift – and you can add your own life experiences to the list.
You learnt something about yourself from every single one of those experiences. If you look at it that way, would it be true to say everything went exactly how it should have, so that you as a result became the person you are today?
Would you want to be that 15-year-old again today? No seriously – apart from the body – would you want to turn back the clock?
How about you stop blaming yourself for your mistakes and you congratulate yourself with your wisdom? And next time when something "goes wrong", look for the lesson and the wisdom rather than the reason to judge or to blame.