[thallukrish]

Whatever you described (looking up key signature etc. in youtube) is the real thing. You are trying to do sight-singing and you are working on it. And if you keep at it and get to sing the whole piece,then you have truly achieved your goal. But if you languish on watching more and more youtube videos, say watch how someone else plays a piano piece or go into something inconsequential to the original problem in hand, then in your mind you started with something and you have not done enough to help that. I am not exactly telling that sidetracking is the problem here, but you moving farther away and away from the original set aside goal is what I am saying.