If we have avairos in our past, of course we should have charata and do teshuva for them.
Regarding “wrong” choices in our life, I think that, after the fact, those things were probably meant to be, and when, at 120, we get to the olam ha’emes, and have a better overview of our entire existance, we will see that those choices perhaps were not wrong after all.
Remember, even things we did “wrong” can teach us lessons we might not otherwise have learned.