Help fitness and eating

claramfboo

I need help well I've started a new account but I eat 1200 calories a day and I workout 6 days a week and I burn 450 calories after a workout and I've lost weight by eating 1200 calories I've been eating that amount for like 2 months now but they say I need to be eating around 1600 calories because supposedly I need to eat back the calories I burn but I'm scared of gaining that weight back and I still need 20 pounds to reach my goal of 115 pounds which is what i need to weight o yeah my height is 5'1 I currently weight 130 but overall what should I do !!!!