I coincidentally started on the 17th

If you don't mind I'll hijack this thread and post along with you!
Small Intro
I'm 5'7, 136 pounds. I recently had my body fat checked and it was already fairly low at 9%. I've already been somewhat active, working out and running.
My aim: Get my body fat below 6% to reveal that elusive 6 or possibly 8 pack!
Tone and bulk up my upper body, without neglecting my lower half too.
Day 1 - Chest & Back... and Ab Ripper X
I enjoyed this session... until it came to Abs
It took me roughly 25 minutes to finish the workout. I did all the reps, at my own expense;
Today is Wednesday and I am STILL VERY much in pain lol... and here was me thinking my core was in half decent shape.
Day 2 - Plyo
It was tough, but I am semi used to this kind of pace in previous work outs so I was able to keep up. My legs certainly felt the burn though on many of the squats. A good day though.
Day 3
Today. A decent session. My only problem was only having 2 sets of dumbwell weights to work with. So many of the exercises weren't quite heavy enough or were a little too light.
That being said, for a first week it was still a good introduction for my muscles.
I had to skip Ab Ripper X. I could barely do one single sit up. I'll rest up this area for Friday, which I think is next again for abs.
Diet Wise
Only been a few days, but have REALLY made an effort in this area.
I haven't followed the plan exactly, but I have followed the guidelines of high in protein, low in carbs etc.
I've hardly touched bread, had plenty of eggs, and introduced a variety of nuts and seeds into my diet.
Yoga tomorrow, which I'm looking forward to!