Having to wear glasses to see sucks so much... I even hate it when the hipsters wear them just to look cool but I wear them because I'm blind...
If one eye gets ridiculously blurry in a short period of time, its a cause for concern. Seriously. See a doctor.
I'm in far worse shape than you. I never had great vision. I've only had one good eye my whole life. But 18 months ago my vision went down FAST, especially in my bad eye. I've got floaters and all that crap. Its depressing. Though mine is more pre-existing condition, it was gonna happen when I get older, but I triggered it faster by stress, poor diet and sedentary lifestyle. I can't really get lasik, cuz if my good eye goes bad then I'm definitely legally blind. At least you have a corrective option. I'd check to see an ophthalmologist to get tests. Though the tests at the regular eye doctors have gotten better over the years. Sometimes eye problems can be a sign of something else going on, like diabetes and such. Especially when its just ONE eye and not both. You're young though so VERY doubtful. There IS a chance that if you rest up and all that, it might get better. I'm with bobrek in that if you need glasses, you'll just need them. But don't listen to us, go see an expert.