I finally realize the problem, why I play the same piece over and over again to the point I want to bang my head against the wall and still not improve or feel very empty and that you haven't progressed at all.
it's that I'm not practicing actively, I would just idly and just play the piece exactly how my teacher instructed me and maybe that is the reason that I feel empty and that the piece belongs only to my muscle memory.
If I could practice more more actively paying attention and making little goals to myself I could probably progress much faster. but how do I do it? how do I make sure I be as efficient as possible as to be at my best? or to at least get in the flow where you lose track of time and only focus on practicing without worrying