If every day of your life you are told by authority figures that the Earth is flat, you will be scared of falling off the edge whether you want to be or not.

For young males that weigh between 150-200 lbs., deadlifts can move up 15-20 lbs. per workout, squats 10-15 lbs., with continued steady progress for 3-4 weeks before slowing down to half that rate. Bench presses, presses, and cleans can move up 5-10 lbs. per workout, with progress on these exercises slowing down to 2.5-5 lbs. per workout after only 2-3 weeks. Young women make progress on the squat and the deadlift at about the same rate, adjusted for bodyweight, but much slower on the press, the bench press, cleans, and assistance exercises.

Start training yourself. You don't have to have been an elite lifter to be a good coach - I sure as hell wasn't. But you have to at least have been under the bar enough to know why wedon't look up at the bleeding ceiling when we squat!

Your muscles cannot get "longer" without some rather radical orthopedic surgery.

You don't get big and strong from lifting weights - you get big and strong from recovering from lifting weights

If every day of your life you are told by authority figures that the Earth is flat, you will be scared of falling off the edge whether you want to be or not.

You are right to be wary. There is much bullshit. Be wary of me too, because I may be wrong. Make up your own mind after you evaluate all the evidence and the logic.