If your ego is tied up in winning a national championship, you have terrible odds and have set yourself up for likely failure, since for every winner there are thousands of losers. I shoot against my own expectations. Other shooters at a match are merely markers as to how my progress is coming, but I take no pleasure in beating others. I agree with SLG that continued progress is an important component of motivating yourself to keep putting in the effort to get better. When you hit a wall, I have found it is usually the mental game though, not the physical game, that needs to get adjusted.