You're just a kid, right? This is just a stage, right? Well, as fun as it may be to chalk your mistakes up to your inexperience, whether you realize it at the time or not some of these mistakes or even these minimalistic decisions and actions are affecting the rest of your life. They are affecting the way you view yourself, altering the person you are to become. So here are 21 ways to unintentionally ruin your life by that all anticipated birthday, twenty-fun.

1. Expect life to be fair at any single point, and sulk when you realize that it is not.

2. Take a job for nothing more than the paycheck, instead of selecting something that fuels your passion and challenges you.

3. Fall in love with someone who makes you fall out of love with yourself.

4. Be so terrified of rejection that you bypass taking chances not realizing that they could lead to growth.

5. Don't let people go because they are 'comfortable.'

6. Get your heart broken and wait for someone to come fix it, rather than realizing you have to fix it for yourself.

7. Focus on seeking short-term joy and happiness instead of working toward what will lead to lifelong euphoria.

8. Try so hard to "find yourself" that you forget this is a time for growth and change.

9. Perpetuate relationships that don't stimulate you intellectually and emotionally just because they are relationships.

10. Constantly try to hold on to the past to the point where it hinders your future.

11. Stay in one place when you want to travel.

12. Succumb in difficult decisions because you are scared that you do not know the outcome.

13. Constantly be superficially jealous of others instead of putting in effort to improve your own self-worth.

14. Constantly let your feelings dictate all that you do.

15. Harbor your feelings up to the point you are incapable of making real connections with others in fear of getting hurt.

16. Constantly work to be "good enough" for someone else, instead of setting your own expectations for yourself.

17. Let your happiness exist only with others, and completely avoid learning to be happy on your own.

18. Constantly put off things you know you want to do by telling yourself you'll do them when you have more time, money, are skinnier etc.

19. Think that this is "the best time of your life" and use that as an excuse that will force you into poor decision making instead of realizing this is the time to mold the entirety of your life into "the best time."

20. Expect anything at all to be done for you.

21. Think that what you do in your life at this point will not affect the rest of it.