feel like an adult

I feel more and more child-ish every day. People all seem comfortable with things like drinking and sex, and both ideas make me giggle like mad. I need to learn to just, I dont know. Grow up. Everyone keeps telling me that if I’d do these things, then I’d be more comfortable around them… but that sort of seems backwards to me. I shouldn’t do them until I am comfortable.

I can have mature conversations and act mature, but I can’t manage to feel mature. There are certain things I just can’t see myself doing, because I don’t feel like an adult yet. I’m barely out of high school and I guess that there’s time, but even little adult-like things just seem way out of the question for decades yet.