I have to force myself. By forcing myself that's how I improve and not just with martial arts but anything I choose to pursue. That's what taking on a challenge is all about. Sometimes we choose to make things hard because we want things to be hard, we want a good challenge. Even with stuff such as video games, a fun pastime of mine, I would sometimes play it on "hard" because I want the challenge. If I don't challenge myself I get bored with what Im doing. As a coach once said that in practice you've got to push yourself to your limit, and you've got to go a little bit beyond that limit, and this wasn't even a martial arts coach who said that it was a swimming coach, but the same concept can be applied to anything. I've got to push myself and take on challenges, otherwise I would be a "bump on a log," and that's not something I would be satisfied with.