What regrets do you have, if any?

I know people who have a lot of regrets and dwell in the past. They think about what should have been done or said differently in order to prevent them.

I know others who do not bother with regrets. They consider life to be to short and focus on making the best of the situations they face or just move on.

Then there’s the last category. Regrets, night sweats and occasional thoughts of suicide. Some people suffer from regrets. It leads to night sweats and occasionally thoughts of suicide because they no longer place value on their life. I feel uncomfortable around such people. I can’t really explain why.

What about you? What regrets do yo have?