You can’t attend school once you’re 21, so if you fail one year, when you are 21 you would have to go through an adult education program to get your GED or graduate equivilency diploma. Classes typically start in August, so if you want to go back…you’d better get the process started muy pronto.

As far as the army is concerned, I think they will accept you with a GED, but you would have to talk with a recruiter to be sure, they used to, but their policies might have changed. As far as college, you can enter with a GED or HS diploma, but make sure you take the SAT exam, those scores have an affect on your placement within courses at college, and most people get into college based upon the score.

I hope I answered everything. If not, you can email me with more questions and I’ll try to give you more information.