I don't regret any desicion I make, or any mistake that happens. It cn be very hrd to do, but there comes a point in the pain and frustration that you have to realise that regret is bad. Regret is the desire to go back and change what happened. As that is impossible, regret does nothing but pull you into a downward spiral of depression and frustration on "oh my god, I did that thing, and now I wish I hadn't, I wanna go back and change it so bad I just wish I could turn back the clock and it never happened!".
That line of thinking will head
no one. Am I sorry for things I have done? Certainly. I've caused people pain. But I don't regret these actions.
Regret will hold you back, focus you on the past and not the present and future. Getting over regret allows you to move on, and finally learn from your mistake, and see what you can do differently in the future. You can still feel sorrow for the event, but don't wish to change it.
It's not that i'm mean, and glad I made those bad desicions. I'm not. But as I can't change them, i've moved on.