I ate half of a pound cake. I feel disgusting.

Hey, so I've been trying to loose weight for a few months. It's been a slow process but I've managed to loose around 15 pounds in 4 months. Im kind of at a stagnant now so I'm trying to figure out how to pick up the pace again.

I was really depressed for the last couple of days, so I didn't eat until I had to. And today I just felt physically in pain and decide to eat half of a pound cake in one sitting. I'm not in pain anymore but I just feel nauseous. I know we're supposed to give ourselves grace but I still just feel disappointed in myself. I thought I was doing better.