Turning 21 is a very weird day. It's something you've been looking forward to for your entire life (literally), but it still seems way too soon to be happening. There's so much you can do now, you are a "full adult." As the day goes on, you realize some things that you hadn't thought of in the 20 years beforehand.

1. You no longer have to hide bottles, shot glasses, wine corks...

2. You think you'll finally be able to go to nice, non-sleazy bars, but then you remember you're a broke college student.

3. Being hungover from the night after your 21st is not nearly as funny as it is in the movies.

4. Telling people "I'm 21" somehow sounds so much more mature than saying "I'm 20."

5. It's really hard coming up with a birthday Instagram caption that isn't "twenty-fun."

6. You're SO far out of high school.

7. There seemed to be more stuff you could do when you turned 18.

Voting, R-rated films...

8. Your next "big birthday" isn't until you turn 30.

9. All of your friends are also turning 21 this year, so you have a whole lot of crazy nights ahead.

10. At twenty-one and one day, you suddenly feel a million years old.

11. Being 21 also means you're reaallyyy close to graduation.

Oh, no. I'm not ready yet.

12. You can drink wine at restaurants like a sophisticate.

13. You can even drink with your parents (weird).

14. You're now more classified as woman/man than girl/boy.

15. You're more confident in yourself than ever before.

And that confidence is only going to grow.

16. You actually have a lot to learn about alcohol.

What's the difference between ale and lager? And why are all wines French-sounding? Is it better if it's more French?

17. Sometimes a night in watching movies with wine and popcorn is more fun than going out to the club.

18. You're officially "in your twenties."

19. Adulthood is basically a myth.

20. You're still the same person you were when you were 20.

21. You're only 21 once, and you're going to make this year the best one yet.