Am I losing weight to fast?

Im a 20F around 5’7 and weight like 192. I have been going on a calorie deficit for a while now but it hasn’t been consistent. I would usually do well for a week and then binge and gain all the weight back. Now that il actually being consistent I have lost about 5 lbs since around Friday so in like 6 days. My deficit is around 400 calories and I try to eat anywhere from 1400-1600 calories a day and a little more on weekends. I’m worried that I’m losing weight too fast. Does anyone have any advice? Is my daily calorie intake too small? I don’t want to have any loose skin once I hit my target of 160.