Download My Fitness Pal, it's a really good app for calorie counting and keeping track of macros, it's what I've been using to lose weight. Basically you log the food in there and say where you bought it from, and all the nutritional info is already there. So you can click on Nutrients and see how much fat or carbs or even calcium you've taken in that day.
You enter your current weight and height and sex and exercise habits, then your goal weight and it sets you a calorie limit. So for example: 5'4, 8.1stone, 19, female, little to no exercise per day, goal weight 7.7 stone, and from this it told me to get on 1200 calories a day, which is crazy considering I must have been on 2200 a day when I was binge eating. It gave me limits for all the macros per day too. Also download Google Fit which counts your steps and works with the app, so even walking during my commute to uni burns like 200 calories so the app says I'm allowed to eat another 200 that day.