so I'm a 14-year-old who wants to maintain a low body fat, and also have a muscular physique in about a year.
I am 5' 11" (about 180 cm) and weigh around 126 pounds (about 54 KG). I think I maintain a low body fat since my ribs are very barely noticeable. I have ab muscles from working out in the past (as a 12-year-old) and have put my focus on my triceps and core so far.
I have a pull-up bar, a bench, and 15-pound (about 7 KG) dumbbells.
My questions are:
What weight dumbbells should I be lifting? What exercises should I do? How long will it take for me to grow a visible muscular physique? What should my diet be?
Thank you very much!