Maybe prolong my college career by an extra two years, make different film decisions in my Hollywood career in hopes I could have had more projects and the types of projects that were more fulfilling, more international travelling in my 20's and then probably marrying my wife much earlier than what i did- didn't see her for 12 years after we became friends at University when she was an exchange student and then we ended up marrying 2 months after meeting up again. Ending was perfect already but there were many years apart.