maybe you're putting too much pressure on yourself. Stop. Breathe. You did great for 19 hours. That's a big deal. Think how hard you tried during that time. That is a success. Besides, hot chocotate and some m&m's are not that bad. OK, things happen. Start over today with a fresh new start. I'm rooting for you!
Don't think of the whole month. Just for today. By the way, I'm proud of you for coming here and posting about it. Wipe the slate clean, move on and start anew. Come here and post often today if you have to.