I don't want to turn 18

I'm turning 18 tomorrow, and I just want to cry about it. I'm not excited, I'm not optimistic about planning out my future, having to pay whatever taxes, getting my driver's licence, being able and expected to vote, I just want to keep being seen as a kid. I'm already not allowed to do the "childish" activies I want because of my parents, once I turn 18 I wont be allowed to do it because of the whole society. I don't wanna find a job and lose all my free time, I just wanna study all about the things I find interesting. I'm already expected to act like an adult, tomorrow I wont even be allowed to be anything else than an adult. idk, maybe it's just seasonal depression messing with my mind, but I don't want it, I'm not ready for this shit.