I ate a burrito

A 790 calorie shrimp burrito, no avocado, no sour cream, followed by chips. This equated to nearly all my daily calories in one sitting. I feel like crud, and it wasn’t even all that great. (Although major kudos to La Salsa for posting their awesome nutritional information online….too bad they didn’t have it in their store so I could make a more informed decision when ordering!)
There, it’s out there. Now I can sleep in peace. (Although I am still nauseous)
Why can’t I stay strong when I go out with my husband? Why?