Hi Candiceena! It will be difficult at first, so you're not alone! I went cold turkey and I think that's the best way to do it, just because you're cutting it off right away. I found it hard to "wean" myself off of it. When my boyfriend went Primal he tried to do it slowly but just decided to go cold turkey, because he found that he kept wanting MORE. IME, it's easier to just get rid of it entirely from your diet rather than having small amounts here and there and wanting more. It was hard at first, especially because I live with people who eat typical SAD fare (and have no intention of changing that) so it's not like I could throw/donate all the crap food. I don't remember if Mark talks about this in the PB since it's been a while since I've read it, but have a look at this article: Is Wheat Addictive? | Mark's Daily Apple. It talks about how wheat can have addictive properties. I've also read about that topic in Wheat Belly and it makes a lot of sense.
I think that as long as you keep eating better foods and seeing how good your body feels as a result, you'll be less likely to have cravings or be tempted by bad foods. I live in a house where there's always toast/baguettes/pasta/cakes and I could care less because I know if I eat those foods, I'll feel like total crap. It WILL get easier! If you enjoy those workouts, I don't see any reason for you to stop them either.