Are you ready for some tough love? There is nothing stopping you from completing a 21DSD in excellence. It just takes awareness and a shift in how you think about eating.
Every time we eat, we're making a choice about what we put in our mouths. When you eat something on the No Foods List, it's a choice. The "all or nothing" thing is a story you tell yourself that actually makes it harder for you to get back on track!
If you slip up, STOP! Take a moment to be aware of what led to the slip-up (stress, inattentiveness, being lazy, self-sabotage, being hangry, etc.) and get clear about that trigger. Acknowledge it. Then forgive yourself, and get back on plan. Don't punish yourself and start over at Day 1. Move on and make better choices. When you keep going, it gets easier.
You can totally do this. Choose to be UNSTOPPABLE!