Now this may sound quite horrible but you know what really helped me out as I was exactly the same as you and could never keep to any diet, but now I'm more motivated than ever! What I done was look through my old pictures, holidays etc and picked out the most horrible fat ones of me and stuck them on my fridge door at home and work, inside cupboards doors where biscuits and such treats are and also have a picture flash up on my phone saying fatty so I keep reminding myself that i dont want to be that person anymore, and it truly works! Lol Good Luck hun, I totally understand XxX