Don't, in an emotional tirade, say things that you wish you could take back later. I did that after my ex dumped me and the damage I caused was unbelievable. That's the whole point of being apart and taking a break. Calming yourself.
Don't become defensive when people are saying what you did is wrong. Because no matter what the circumstance, it doesn't validate your decision. It doesn't matter why. You were wrong. Accepting that will help you change your habits and become a better person. It will be a start.
Waking up next to a beautiful girl,
Step outside and say hello to my beautiful world.