Hi there. Welcome to 3FC.
I think the first thing anyone will tell you is that 1000-1200 calories is not enough. The general recommendation is that you don't drop below 1200 cals unless you're under medical supervision for a very low calorie diet.
IN fact at your weight and height, you could probably eat 1500 cals and still lose, as long as you added in some exercise.
Also while yes, the basics of it are limiting your cals, you can't really eat just anything as long as you stay below 1500. You do still have to be aware of what you're eating and get in proper nutrition or your body will stall w/out the proper nutrients.
But ... that said, it's really not that hard. Protein, veggies, and complex/natural carbs (i.e. whole grains, fruits, etc. rather than processed sugar and white flour).
I love calorie counting because I am not restricted. There are no foods that I *can't* have ... as long as I have the calories. For example, I had a chocolate chip cookie today ... it was a treat, but it fit within my calorie limits. And I didn't have to feel deprived as everyone else ate cookies and I didn't.
.