10 Life Lessons to Excel in Your 30s

1. Start Saving for Retirement Now, Not Later
2. Start Taking Care of Your Health Now, Not Later
3. Don’t Spend Time with People Who Don’t Treat You Well
4. Be Good to the People You Care About
5. You can’t have everything; Focus On Doing a Few Things Really Well
6. Don’t Be Afraid of Taking Risks, You Can Still Change
7. You Must Continue to Grow and Develop Yourself
8. Nobody (Still) Knows What They’re Doing, Get Used to It
9. Invest in Your Family; It’s Worth It
10. Be kind to yourself, respect yourself

Above is distilled from collective wisdom of 600+ people who already went thru their 30s. Read more at: http://markmanson.net/10-life-lessons-excel-30s