It depends on the reason of the break-up. I was the initiator of the break-up and I don't regret it. I caught her cheating this is why I was pretty decided on my wish. Even if I loved her and she was my wife for 6 years, it didn’t stop me. The unique problem is that I feel lonely, I am more of an introverted person so my wife was my best friend. Now I fight with the loneliness pain and searched a lot for some bits of advice on how to go through it. I found a site with some good info, and I read it 4/5 times a day )) https://breakupangels.com/loneliness-after-divorce/ especially when I get the anxiety I go on and work on myself.