Mind over matter

I am literally wearing my go to work out shirt that says mind over matter on the front. Today I proved that this is true because I went to a kid's birthday party and resisted eating to much junk food. I ate a very small piece of cake and a bag of Fritos. I had a burger only without having a hot dog too. Every time I've gone to a barbeque I would allow myself to get overly full. Like I'd eat everything in sight and a lot of it. I am learning to pace myself and watch what I eat and how much.