[RyanCahoon]

I echo everything [rsisk] said. In addition, I'll point out that robotics programming is different from desktop application development. It's impossible to model the real world completely accurately; you might be able to get a close estimate, but no matter the amount of premeditation, you'll always have "bugs" in your program. I find my robotics code always has a considerable number of "magic numbers" that I came to by trial and error. So don't worry about it too much if you do a lot of guessing and checking. And as was said, you'll get better at guessing as you gain experience.

Good luck,
--Ryan