I did end up actually talking to my step-mother about all this fasting business, and then to her brother, both of them really knowing their stuff. They both were very against it, saying they don't recommend it.

I still don't quite understand why it's not a good idea, but if there's even a chance I could undo hard work or make things worse, I'm not gonna take it. Because of the nature of my workouts, I need to make sure I'm well fed (still dieting, though) so as not to starve my body of they much-needed nutrients to break down and build up my muscles.

I might be OK, at least according to my step-mother and her brother, to fast if I weren't working on muscles, as well. I personally think they're both biased, though, as my step-mother was anorexic when she was a kid (and/or bulimic) and her brother tried to help her; he's the reason she got into fitness and stuff.

That's pretty awesome. You don't need luck - you have each other.