For me, counting calories is to make sure that I'm eating ENOUGH. It's so easy to under eat when you're dieting, making your metabolism slow down, and your body hold onto fat.
I use the 'Lose It!' app on my phone, because once you get the hang of it, it only takes you about 5 minutes every morning to plan out what you're going to eat.
I eat every 3 hours in order to maintain balanced blood sugar levels, keep my energy levels up, and make it so that I don't binge at the end of the day once my body gets fed up and decides to let me know that I haven't eaten enough for the day
'Lose it!' is also online, but be careful not to set your goals too extreme. I'm not sure how others do with dieting, but I set my goals to lose 2 pounds a week months ago, and I didn't lose A SINGLE POUND (1100 calories per day) -- FOR MONTHS. Well, this is probably because I've had a history of depression, I quit Adderall (ADD meds), and I also quit smoking... BUT

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What everyone else said was correct. Find out what works best for you, but remember that if you have greedy fat cells, setting your caloric intake TOO LOW will put you on an epic yo-yo, cyclic diet (especially if you have, or used to have an eating disorder).
Give yourself a month or so to figure out how your body responds to different caloric loads, and different foods.
What may be even more important for you is making sure that you have deciphered your 'metabolic type.' It was for me. And of course, if you lift weights, your body will burn more calories

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