I overstayed my tourist visa, and in around two months I will be turning 19, so I can get the 3 year ban waived if I get a voluntary departure and leave before I turn 19. Then, I will be able to apply for an F1 visa, and since I am currently attending a school that knows Im undocumented and gives me sufficient aid, I will have the F1 finances part down.

The problem: how the heck do I get a voluntary departure? Will the process take a long time?