my story is similar to those who had a parent set the timer on the piano and tell them to fill up all the minutes with practice. it was like brushing teeth at first. then, after 'hitting the wall' a couple of times (once in grade school and once in jr. high) i decided that i actually enjoyed it. people think that if you play the piano you are really smart. they put you in situations that require quick thinking (so after awhile you become smarter just because it's expected). sight-reading, for instance. after accompanying choir all through highschool, i realized that performing was fun! we would sing/play for the elementary school kids (adoring fans) and they liked our choir because we had outfits, choreography, and a really great choirmaster (he was into jazz/pop/classical).
music is a great soother, too. i would say for all the hard times in my life, that music has had a very soothing effect on my psyche. you can play what you feel like at the moment. and, it's a neat feeling after awhile to have your fingers exercised.
i have learned the most from the teachers that were the most exacting, the least complimentary, and extremely intense in what they taught. i guess what i mean by intense, is that they go through the score before doing anything (whether singing or playing) and determine what approach will be used. in college, i learned how to order my practice time, what it felt like to be warmed up, what it felt like (after a few years) to memorize well, and when i was ready to perform vs. not ready. this makes a huge difference in actual performance. now i want to learn more about feelings. i thought i had good interpretations, but my current teacher thinks differently. more expression is like acting for me. i usually play comfortably (in my own comfort zone). but, he thinks going beyond that is better. to make something stand out. make a statement. be a bit more commanding.