It depends... Your optomotrist really should have told you.
I know somebody who has to wear glasses for the rest of their life and their eyes detoriate really quick - however they have found an optomostrist who has a different theory using different lenses in one lens.
Somebody else I know had to wear glasses to correct a lazy eye and do excercises.
If you don't wear your glasses as the optomorist instructed you then your vision will detoriorate faster.