Hello. I have been very successful with cal counting. This link is what I go by:
1.
Womens Nutrition Health Guide Calculator
This link is awesome! It really helped me to understand how many cals my body needs to maintain and how many cals I need to cut to lose. It has been working like a charm and I have lost 10 pounds in October since starting to follow it!!
2.
Fitday
Another great find. I am losing by counting calories and this thing is usually the first place I go to every day. I usually keep the window open and it helps me decide what to eat, what to eat less of or whether or not I can have a treat. VERY helpful in keeping track of calories!
Look at what the maintenance is and then I reduce it by 500 a day on average. I also walk 60 - 90 minutes a day but that is something you need to work up to if you are not already doing it. You are welcome to come join our support group, the link is in my sig. Good luck!