Joining army rotc info needed?

ok im not in college im 20 yrs old i work full time i have my g.e.d i know not alot acomplished so far but i want to change that and ive always wanted to joing the army i know to go enlisted ill need 15 college creds so dont go telling me something i already know.im thinking now i want to do the rotc program and become an officer but what steps do i take do i need to get some college creds before i even think about this or what right now im signed up at the comunity college for fall semester so i will be starting college soon and the comunity college here had a program for rotc i heard so if you could give me the steps i need to take it would be greatly apreciated