The piano is such a mystical instrument. You can never get exactly the right notes at the best time possible, it is such a stress. But when you do get it right, you feel fabulous and you want to do it again. You can only get the notes right every time if you are an absolute professional at the piano, you have been playing for years and you know what you are playing and have been practising for 5 hours a day! It is easy enough to improvise, but to play a piece in front of you, now that is hard (of course, you have never played it before).

Try to learn an instrument. If you don't you will regret it for the rest of your life!