One day, i was talking to a great musician. I asked him, why he was so good. He says:
"In the morning, always start with a warm up. Take note of the basics, rather than the most difficult things. When you start the day, set a side a little bit of time with your instrument. Serious students, specially those who are studying complicated pieces must keep their enthusiasm; try to remember why they started playing the guitar. Do not lose that sense of joy, sense of mystery, sense of fun. That's vital, that's more precious than any technique."