Can i go to ASU and Succeed in Life?

I'm 17, going to the 11th grade this fall. i'm a year behind i didn't get all my credits from the 10th grade which will required me to re-do my classes and take summer school i fail my AIMS. i decided to drop out. However i'll be joining a military school "Project Challenge" it's a 5 months process if i apply they will reward me with a diploma or G.E.D. (I'm going for a diploma) and i want to go to ASU and take an art class of ROTC. can i do what i'm thinking here or is there angle i'm not seeing?