This music is who I am at the very center. And a healthy dose of natural music talent that I inherited from my father. That's a very hard question to answer. Because I am my own boss for the most part, all of my incentive must come from within. That means that I can sleep late if I want to, instead of getting up and working on that sonata I'm writing.
Time management is tough.
Get some education in the business of music. As I said before, the lack of that knowledge was my biggest stumbling block. I wasted a lot of time playing in bands with people who had a different vision than I did. I hear story after story about people in bands who are held back by other band members who have drug problems, or personality problems. Find people you can rely on to work with.