the healthy calorie consumption per day for a average woman is about 2000-2200 calories. So if you consume the proper amount of calories per day and exercise you will lose the weight.
p.s. you do look thin to be concerned about losing weight
First you need to find what is your daily calorie intake. Find our your bmr using the harris Benedict equation online then multiply that by the level of activity in the guildline. Once you find out what your intake should be subtract 600 calories from it. That will let you know how much to eat.