There’s no point in regretting. Thinking about what might have been, could have been, should have been. It doesn’t matter. It is how it is and now you have to deal with the situation at hand. Wishing otherwise will not change anything. All you can do is make the best decision with the information at your disposal.
When we have regrets and feel as if we made the wrong chose, we often fool ourselves into believing that we had more information when we made the decision. It’s difficult to separate information that came afterward from what we knew at the time.
No one makes crappy decisions on purpose. We simply try to do the best we can under specific circumstances.
Stop dwelling on the past. Today you get to make new decisions all over again. Make them count.