I've been using myfitnesspal.com to track my food and exercise regimes on a regular bases since I started working with a sports nutritionist last year. It has helped dramatically. I've come down 8 kg and still have about 5 kg to loose to get into what would be considered a proper body fat ratio for a figure skater of my size (17-18%). This means really weighing and tracking everything you eat and drink as well as all your sports. The progress is slow and you have to be completely honest with yourself, because you have to maintain enough calories to keep your training from suffering due to lack of energy and/or fatigue but a 0.5 kg loss per week is possible.
For me that means between 1,500 -1,800 kcal per day depending on my training schedule. My base cals is 1,240 kcal and MFP gives me around 400 kcals per hour of skating ( which is consistent with measurements from the USFA) which are added to my base value. So for a day in which I skate two hours, I'm allowed to consume up to 2,040 kcals. Most of those calories are made up of proteins and high quality non refined carbs which reduce my cravings and my stabilizes my sugar levels. On a typical skating day I will be consuming around 100-120 grams of protein per day depending on my training schedule. 25 grams of protein at each meal and 25 to 40 grams during for protein snacks. An hour/ 30 minutes before skating, I'll either have a protein shake and an/a apple/banana or an all natural PB sandwich with banana and a bit of honey, and for dinner something like a chicken breast/salmon and non starchy veggies.
Also, something to keep in mind is that high protein doesn't necessarily need to be heavy. My favorite breakfast is a 170g of low fat greek yoghurt, 15 grams of muesli, 40 grams of fresh fruit of some sort and a coffee with soy milk. keeps me full until lunch time, but isn't heavy on the stomach. Honestly, most people who eat cereal in the morning are eating multiple times the recommend portion of it and already overloading their caloric intake. It wasn't until I started weighting my food that I realized what 45 grams actually look like. Take a look at your portion sizes.
Also, the keep in mind that the lower your weight the less you have to eat, and also the slower the progress will be. You just simply don't have a lot of room for "error" anymore. Keep in that loosing 10 kg when you weight 80 means losing 12.5 your body weight, while losing 10 kg when you weight 60 means losing 16.6% your body weight. By definition it will be harder. That fact that you have been stable the last 6 months suggest that your body has gotten use to eat a certain caloric count, which is probably really close to your maintenance level at the moment, to drop the last kilos/pounds you'll need to drop that calorie count and be much more careful what you are eating and look for those "hidden" extra calories.