Am i a normal 22 year old guy?

This is such a stupid and random question i know.... but im 22 years old, and ive never felt grown up i do not feel my age at all i fee like im still in my teens half the time, but i look at my friends and they are at university and are in descent jobs they do grown up things if u knw what i mean, and theres me, i work for a Retail store as a sales assistant and i coulnd be happier, i still do live at home with my mum and brother and my mum boyfriend, i play ps3 and spend alot of time on the internet i go out every weekend with mates and get drunk lol but i dont have a girlfriend anymore although i have been in 3 relationships in the past but ive been single for over a year now and im started to get worried, im full time at me job ive been there five years, its never bothered me at all about going uni or having a top notch job im just happy as i am, i love my life i still play the sims LOL i love doctor who and i even collect doctor who toys and figures i do drive aswell got me own car and i take my mum and brother around everywhere i feel like im wierd i dont feel like a normal 22 year old so what do you think