Please help

use the app to get an estimation and go from there.

use this to calculate your tdee http://www.fitnessfrog.com/calculators/tdee-calculator.html
then take away 250 for every 1/2 pound per week you want to lose.
Aim for 1-2lb a week.

I am 5 foot 5 and 191lb and its reccommended I eat 1470 to lose 1.5lb a week.
Dont aways think that 1200 is the best way to go because sometimes it isnt, you can eat more and still lose weight!!

2nd for figure out your TDEE and BMR. Once you know your TDEE (there are like 3 or 4 different formulas...I'd do all of them and take an average of all the scores b/c they will not be exactly the same) manually set your MFP goal to 15-20% less than that, but not less than your BMR.

http://iifym.com/tdee-calculator/

There is something about macros on there too...I'm not an expert in that area so it'd be better to ask someone else about that!