ruined my whole day, ugh stupid me!

I was eating my scrambled egg with cucumber and then i as like hmmm i want some nachos , cheese nachos, so i was taking a few. but then I was mmm theyre good. Started to take more and more and more! I ate up everything that was left  Im so disapointed in myself, cus i had my eat what i want day yesterday. cant have one til saturday =/

why do i have thesecravings after dinner?? maybe  should eat more?