My weight loss has been very slow although I know I'm building muscle. I'm curious to see how many people eat back their exercise calories. MFP tells me to eat 1200 with no activity and I mostly stay on track

I know some people say to eat back your exercise calories or your body will starve and store fat but I'm not sure if that' working for me. I wanted to lose 20 lbs by May. I started 2 months ago and have only lost a few