Any tips?

I’m 18 (almost 19) and struggling with accepting adulthood. I didn’t realize I had to be an adult until 2024 ends. I have some issues mentally, and they’ve been getting worse lately. Yesterday, at college, I felt like everyone was more mature than me and had life figured out, and my trouble with socializing didn’t help (English is not my first language neither). I don’t know what to do right now. I felt bad when I arrived, and in my last class, I was in panic and ended up crying in an Uber on the way home. I don’t have a job yet (I’m looking for one) and still live with my parents. I never learned simple things like cooking or doing laundry in my teens, but I’m starting to learn this week. I don’t know if it’s because I didn’t do what other teens do, like partying, but I feel like I didn’t grow up well. I’ve never had any sexual experiences either. Lately, I don’t want to do anything not my hobbies, I have this important group project I haven’t start my part and I feel stupid and guilty for it, but I can’t just ignore it anymore because I’m an adult and have to do things—even if I’m crying. This morning, I woke up scared and I don’t know why. Please give me some tips or advice.