Years ago I hurt and then cut contact with my best friend and I still have regret for it to this very day.
If you regret it why don't you try and reach out to the friend and makes amends?
We we're so close and we could talk about anything and we were opening up about everything in our lives.
Sounds like you two had a really special close relationship. It's sad that you end a relationship like that over something that probably isn't a big deal now looking back right? True friends are hard to find and it's never too late to make amends.
But  I did bad things to him.
Just because you did wrong back then doesn't mean you haven't learned from it by now. I'm sure they would at the very least like to speak with you again, as it sounds like you had a very good relationship.