Think of it as something which must be done, for your own good. Take one step of a time, and with in sometime you'll look back and see how far you have traveled. Do some medium, easy, some hard problems. Also, it may be good idea to buy their subscription. Try solving most popular or company specific questions.This is sort of self improvement investment we gotta do.
If I can only tell you, my failures! Just keep trying man and do remember, we can do our part but can't control the outcome. During the journey you might end up somewhere better. Keep your chins up!