i love the kickboxing on the 4day split but i am no good at the step routines. is it okay to do the same cardio or do you have to switch it up like you do with weight lifting. the bootcamp and kickboxing is fine and of course and i would do all of the weights on different days. or do i need to just need to suck it up and keep doing the step. it just feels like i'm just trying to figure out the step more than i'm actually using it.