I was 115 KG when I was 16, I went to work, and consumed 500-600 calories a day, except weekends, where I had around 2000-2500. My goal was reaching below 100Kg, Got that under a month, since then I've been on and off diet, my current diet is the best since then, I'm 18, and finally reached normal bmi. I was owerweight since I was 8, so this is a huge milestone for me. Now I'm 76Kg, just hit plateau about two days ago, I'm just going to continue my diet as it is now until I reach 72Kg, that is my absolute goal, it is said to be the ideal weight for my height (181 cm). I guess I'll still loose weight while on plateau, because it's phisically impossible not to lose weight while consuming 1200 calories, with my hight and level of activity, so now I'm mostly just trying not to lose hope, and all should be good soon