5 techniques to break out of the unhappy vicious cycle

I must admit I was an asshole 5 years ago. I still probably am but was a lot worse. The problem is I was also miserable at the same time. I resented happy and succesful people. I was miserable so I was arrogant and selfish. The vicious cycle continued for a long time. It was a very tough time when my long-term relationship ended even though I was the one who ended it. Now I look back I think the relationship ended mainly because I was unhappy with myself. I managed to get out of the vicious cycle and I would love to share ways out for you to be a happier you.