Can l lost 10-20 pounds in 30 to 50 days!!!!!!!!!!!!!!!!!!!!!!!!!!…

I'm a 20 years old male, 6'1 and weigh 229lb body fat 15-16%(still deceasing) and my muscle gain is still going up. i want to be at 209lb. i did the math i can't go underneath 190 since my muscle weight and everything else in my body beside fat is in a 190-200 range so i have a body builder physique. im very active i go to the gym almost everyday and run and eat healthy plus taking B vitamins to boost up my metabolism. im trying to lose straight fat! not muscle