It's exhausting

Two days straight I've worked out in the office fitness room. Yesterday I felt like I was going to pass out, so I only made it to 17 minutes on the elliptical... but pushed myself to still do 100 crunches, I figured if I passed out, I was already laying on the floor, lol! Today I made it to my personal goal for the moment of 25 minutes and 100 crunches. I'm hoping to get to 30 minutes within another week or two. Tomorrow my workout buddy and I have decided to take a brisk walk outside during the lovely weather that has been forecasted.
I have the "30 Day Shred" DVD at home, only tried it once, I just can't seem to push myself to workout once at home with sunshine. I've had a co-worker borrow it, and then go out and buy her own copy, and has now been doing it for over two weeks with some slight results... but I can't seem to do it when I've owned the DVD for months! Maybe I will get some guts to do it over the weekend... I am in better shape than I was when I first attempted it and couldn't even get through the whole 30 minutes!

Still no pop... I wonder when I will ever allow myself to have it again, I'm almost afraid to... like it will be a failure if I give in, even after so long...