What would you do differently if you could start over? Advice for a 30-year-old guy who just intentionally blew up his life.

In the last month I've made some major, intentional life changes:

• Finished a graduate program
• Got a new job paying a lot more money
• Broke up with my girlfriend
• Moved to a new city
• Cut out a few toxic friends
• Stopped some old habits, good and bad

My life until now has been good, but not great. But now I have a prime opportunity to essentially restart my entire life from scratch. 

If you could give advice to some "starting over" so to speak, or provide sage wisdom on some life choices you wish you would have made, what would be your New Life Pro Tip(s) to pass along?