I am an 18-year-old, 5'5" girl. Over the course of a little over a month, I have gone from around 153 to 130. I have experimented with long fasting days, days of very low calories, and some exercise, also a plant-based diet. Of course, I know I unhealthily lost all this weight, but now I am scared that if I start eating normally again will I gain it back? This cannot happen. What do I do? I am an athlete as well and need to be ready for my soccer preseason in two months. I have been overweight my whole life, and I cannot be fat again.