By 20, you've been through a lot--to say the least. You're at the point in your life where you start to be reminded of where you've been, and how far you've come. Twenty years on this Earth. The double digits. Remember how ancient 20 seemed when you were 13? Doesn't your first day of high school feel so close, but also like 100 years ago? You've completed high school, and maybe you're pushing through the work world or dominating college. Either way, you've probably found yourself saying, "wow, I remember the first time I..."

Here are 20 "firsts" that almost every 20-year-old has experienced.

1. Your first birthday out of the teens.

2. The first time you fall in love.

3. The first time you drive a car.

4. The first time you drive away from home to college.

5. The first time you return home and it feels foreign.

6. The first time you realize that you'll never go to prom again.

7. The first time you experience true heart break.

8. The first time you feel like you're not going to be okay.

9. The first time you realize you're an adult.

10. The first time you don't have a safety net.

11. The first time you have to figure out how to create and provide meals on your own.

12. The first time you start thinking about how you're going to spend the rest of your life.

13. The first time you're reminded that you graduated high school over a year ago.

14. The first time you feel like you've made an impact in someone's life.

15. The first time you realize everything your parents have actually done for you.

16. The first time when the younger faces in your hometown and at your old high school are no longer familiar.

17. The first time you realize your grandparents, and even your parents, won't be around forever.

18. The first time you realize that your choices and actions are actually starting to matter.

19. The first time you decide that you don't want to grow up anymore.

20. The first time you realize that your entire life is ahead of you.