I have still have a few pimples after taking accutane what do I do now?

I took accutane (well the generic form of it) a year ago. I hardly ever get pimples on my forehead, but there are a few around my cheeks. I don't understand I thought this was suppose to work. I mean what else can I do? I eat my greens and stuff. Do you think it's because I stay up late?