Crying over cravings and bingeing

I'm so ashamed right now I was craving some Chili Doritos.. So my SO went to the shop and bought me the share bag with 900kcals I put them into a bowl to avoid over eating but I kept filling the bowl and now I've eaten them all 😢 this is not like me and I feel so terrible right now! I'm gonna get back on track right away but how can I justify this 😢