Unfortunately, you won't have the time to go back in 2-3 years. You'll be too busy trying to pay your bills, keep the apartment, deal with your psycho girlfriend, have some semblance of a social life, and deal with that stupid used car that needs to pass inspection. Oh, and dont forget about that crap client who won't leave you alone. Good luck dude.

Exactly. I just turned 20, could've gotten my bachelor's two years ago, and yet I still don't have one. And so what? I've spent every day loving the experience of whatever it is I'm doing, I don't even regret exploring all the dead ends. It's all part of life, even when your path twists more than others'.

Edit: I should credit my fiancée who is halfway through the last program that I left– she has much more patience for all of things that I would only see as a poor use of time (i.e. taking introductory classes in which I already have 20+ credits at junior or senior level). Otherwise perhaps I'd be a bitter sap, which is probably how I come off anyway after a couple days of no sleep. Dead ends for me are not for her and vice versa, so it's all rather interesting.