If you can’t do anything about it then let it go. Don’t be a prisoner to things you can’t change.
When facing difficulties, people usually want to solve it. But sometimes they can not change the situation.
A competition comes to and end and you are the looser. You may feel sad, disappointed. But you can not redo it or can change the result of the competition. However, if possible, you still can participate in the next competition.
You split up with a relationship. Two of you still love each other, then come back. But if your ex gets married to someone else, then it changes nothing if you are sorrowed or try to hold them back. Because they already left you.
Similarly, if there is any chance to change things or to undo what you have done, you can choose to give up or to fix it. But there are something that you cannot change, then you should accept, skip it and move on.
There is nothing you can do if you still feel sad about what have done. It even makes you more pessimistic and lost what you can develop.
So be smart to recognize and seize new opportunities that are coming.
