Really do try counting calories. Get myFitnessPal and set it to 1kg per week weight loss. The first week is horrible, but then it gets easier. Don't worry about carbs/fats/etc., just watch the energy. I'm doing this currently again, for me it's 1500 a day plus biking for an hour gets me 300 more.
It's interesting if you have never done it before; you won't believe how many calories there are in certain foods.
Also: Sleep. Get at least 8 hrs a day.
Amazon link seems to be broken :)
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