I prefer the phrase "practice makes practice." By setting ourselves up for the goal of perfection are we really doing service to our learning and growth? Or are we setting ourselves up for the disappointment in never being able to achieve perfection? What is perfection anyways? Does perfection really contribute to a meaningful musical experience?
Okay, this thread got the completely wrong turn... It's not really about my practising. It's more about the practising itself. If you compare two top notch pianists, say, one that practise A Lot and one that practise not so much. For me, the one that practise not so much always has got this, Lively part left. It's like they are a bit surprised over the sound and the notes. Rubinstein said, I think, that he never practised so that he knew everything, to not lose that sort of surprise. The same with Shakespear and Moliere, who never rehearsed more than 2 weeks.
I found that in my case, i can almost never play what i learned the same day, ill have to practice it till at least the note sink in my brain, but still can't play it correctly.the next day when i wake up, i just try it few more times and ill be able to play it with ease it really strange but it happens to me