Tell you what--if you aren't going to follow the Fat Smash plan as written, maybe you should find another plan before you try to go any further. One that you can follow better.
All of these plans expect that you'll follow them as written, and not play around with a little here, a little there. Otherwise, the results are unpredictable.
If you just can't stick with any plan, then perhaps simple calorie counting would work for you.