Feeling immature

I turned 19 recently. I’ve just been reflecting and gosh I feel so immature.

Like emotionally/ mentally. I still feel like a 12 yr old. I still feel childish and cutesy. I’m 19 for gods sake. It’s like I’m stuck. I’m self aware, actually probably too self aware. It’s just I don’t know what to do most of the time.

I’m in uni right now. I have a part time job. That’s something to be proud of i guess.

But I just need advice because I’m gonna enter my 20s in a yr and I dont wanna be an emotionally immature girl/ woman forever.

I’ve considered maybe I could be autistic since I also struggle with friendships cues especially with women.

But I’m not self diagnosing, it’s just what I’ve heard from my previous therapist and teachers.

If that’s the case idk what more to do in my life