Core What?

I have a problem with my new work out videos. First, the guy on the tape tells me that I can look like the model - I got news for him, no matter what I do I will never look like a tall, skinny, black girl with perky boobs. Not happening. Second, he tells me to use my core - I think my core is made out of jello, either that or it was surgically removed when I had my last C-section 14 years ago. Third, my exercise bands are too short - they don't reach over my head, in fact, they barely reach my shoulders. Forth, he shows a modified version of the exercises for people who can't do the version the models are doing, but what if you can't do the modified version?? Fifth, I understand that you need to work out the major muscle groups, but he's got us working out muscles I didn't know I had. I figure if I haven't used these muscles for my first 49 years of life, I won't need them for the next 49 years. And finally, the background music is irritating. But other than that, it's a fine program.

Note to self: 2 sessions a day is a good start.