I have battled with my weight for most of my life.
Until the age of 14, I was underweight. Since then, I've been overweight.
I do regular exercise (an hour a week at the gym).
I've lost 2 and a half stone since mid-June.
I cut down my portion sizes and cut out a lot of junk food.

However, recently things in my life have been stressful and I'm mentally drained.
Since this started, I'm eating more (a couple of Grab Bag size crisps and a couple of chocolate bars, 3-4 ready-made sandwiches from shops and a couple of McDonald's a week).
I know this is bad for me, but I can't seem to get back out of this habit - my weight has stuck at the same for a couple of months, now, and it's making me very unhappy.

Crisps/chocolate/fast-food has always been my downfall, and I did very well, initially... but now I can't stop it.
Today is particularly bad, cause I have had more than usual.

Can you give me any advice?
I still have another 4 and a half stone to lose before I'm at my recommended weight.
Please do NOT comment and tell me I'm fat, a pig or any other insults... they really don't help and I'm already very aware of it!

Thanks in advance.