Do you have a target goal for your weight regimen? That is a pretty key number, and when losing/building to a point, you want a finite goal. Sub 10% bodyfat is going to be a massive effort regardless of who you are, but using that and then achieving specific goals from there? Very different animal. Are you minimizing carb loads vs. protein loads and adhering to that? That is mostly going to be your issue, for the most part. One day of fucking up shouldn't do anything, unless the rest of your week is shit-tastic, which at 10% it pretty much can't be hah. I'd focus on protein management and carbs/calories will fall into line unless you think breaded mahi-mahi is something healthy.