i am struggling today

and indeed have been all week. Self destruct button is firmly on at the mo ! I have eaten my body weight in junk last night and this morning. I am feeling tired and lazy. Not been out the door at all and not been to the gym since a week last Tuesday. NOt done much damage i know but it will become the slippery slope if i am not careful. I am so close now to goal - only four lbs - so why oh why am i being like this ????