I am there with you! I want to eat right, I try to eat right, but if anything changes from my routine or planned food, then I screw it up completely!
Like yesterday, I ate sensibly most of the day, then I go out and eat so much! I mean starter, main and dessert, all of them very caloric... bad bad bad bad me! But all you can do is smile and say "tomorrow will be a better day". I am going to work hard this week, I need to see a new low (as Omega says)... I want to be 59.9 kg for August 8th... don't think I can do it, but I want!!!!!!!
You only started a few months ago, it is great you have the exercise under control, now slowly introduce the food changes. For me it was the other way round, I could change my diet without major problems, but then doing exercise... oh man, so time consuming! And tiring!
Have a great day, Camy