To become a better singer, you must simply exercise. You must exercise with correct form and attention to detail. It’s no different than going to the gym to workout your body.
We have all seen people who go to gym and simply go through the motions. Their form is not disciplined, and therefore the correct muscles are not activated when doing the exercise.
This is the same situation when singing. If you are not activating the correct muscles and coordination within the throat and larynx to do the exercise on hand, then you are simply wasting your time. Other muscles are doing the job instead……..and that is what we are trying to change in the first place!