thanks again for all the replies and help.

I don't wanna sound like a bitch or nothing because I appreciate your tips on stopping the driving and cross-overs, and like I said before, I'm definately gonna try what you guys were saying BUT I didn't want to know how to stop all that. I think eventually after so many times I get that done on me I'll probably figure out how to stop it. I just wanted to know how much you could get away with on defense. Can I bump them? Can I push them with my body? I know you can't just straight-up shove them but what can you do physically?