I'm an adult? Since when?

So through the past week I've realize, in association with my friend Monica, that we have grown up and I think it's stupid. I am 22 and I am supposed to know how to manage my own money, have a career in mind, go to graduate school, have a healthy romantic relationship, and be sane. I think that's stupid. I want to be 18 again where I have no worries and can have fun....I still have fun but now I have to actually go places and do things hung over instead of just laying in bed and recovering. Blah. Gay. I'm done.