I think one of the things that is really holding me back is that I have a very undisciplined practice routine. In fact, undisciplined is too kind....haphazard would be a better word.
So, I think I need to develop a routine. What should be included in a practice/learning session? Scales? Right hand technique? Left hand technique? Learning tunes?
How much time should be devoted to each? Is it better to learn one tune at a time of mix them up for variety?