I’m going to turn 16 soon, and I was thinking about buying a retraite and enrolling in a course. My height is 178 cm+, my weight is 75 kg, and my body fat percentage is about 18–20%. I want to be much leaner, but I can’t manage it I keep falling off the wagon, even though I walk ten thousand steps every day. I’m just afraid that my growth will slow down. What do you think? Maybe you could give me some advice?