I play the guitar and have done for a long time, but got into a bad habit of never playing/practising with a metronome or beat. The result is that I am very sloppy and struggle a bit when I do play along with others or when I record. I have just taken up playing the piano, and surprisingly , after the first couple of weeks am really progressing and think that my sparse guitar theory must have sunk in deeper than I knew. Anyway, the point of this thread is to say that I am practising with a beat/click/tracks most of the time to prevent me being sloppy on the timing. It's a tricky and I lapse back to freestyle noodling now and again as it is so relaxing. But I am aiming not to make the mistake I made on guitar of being lazy instead of structured practise. If you could go back and learn an instrument, what thing would you do different second time around?