How do I grow up?

I'm a 23 year old person just living life like anyone else, but I feel INCREDIBLEY stunted and behind compared to others at my age. I tried school but that lead to nothing thanks to my lack of ambition, so now I just work day in and out just to taste better for later. Heres the trouble I'm having.

I like things that are "considered" childish. I love games on my switch, I play roblox with my friends and my niece, I still wear my GIR onesie that I got years ago, I lack a ambition and drive others seem to have... I want to give myself a better chance for the future. I wanna invest in myself and not feel like Im still 19. I already pay my own bills and take care of myself as best as I can, but I still feel so stunted.

How do I grow up? How do I get the drive that others do? How do I find a passion? Theres a bunch of things I am trying, new hobbies and such... Nothing seems to keep my interest.

I really would appreciate if someone older than me would give me a little advice that they wish they got at my age. I dont want to be stuck doing the same shit in the same apartment. I wanna travel, I want to live a better life. I want to grow up.

Any advice would help, books, podcasts, anything.