I have no idea what I'm doing here but I think I may be consuming too many calories

I don't like the calculators! Can someone help me please?
I'm 5'6"
21 years old (female)
light activity level
I weigh 213
My short term goal is to lose 7-8 lbs. by my birthday (April 26). I am currently eating 1,700 to 1,800 cals. I exercise twice a week. How many calories should I be consuming to lose that amount of weight by easter?