If your plan A didn't work then try plan B. If that didnt work either then try plan C and so on. What I want to say is that you must never change your goal. Failure is when you stop thinking of other plans to achieve your goal when the plan A didnt work out for you.

Imagine if you could dream about your books, read them in your dreams and learn them. You will never need to study in your life again. Just sleep.