Um army infantry?!?!?

So I'm 17 an I'm about to graduate 1 year early and I've wanted to be in the army since I was 3. 0_0 should I join the army like now or I could do army ROTC for 4 years in college and come out as an enlisted officer horah.. lol which I think is smart but I don't really want to wait and please give some real advise don't slam me for not wanting another branch oh and a question for ladies um just curious is a man in uniform cute lol what can I say I'm 17 I kinda like girls :) but yes help with this would be great thanx guys ;D