Following this thread for quite a while. But since it was quite obvious to me, why I practice, and what keeps me practicing, I didn't feel the need to answer. But then jojo wrote, and there came another thought. So first of all:
The reason why I practice and what keeps me practicing is because I need to. Same way I need to breath, to eat. I am not complete without my daily practice. And its hard for me to not be able to practice on Sundays for the same reason.
But then again, I have not found my limits yet. And that brings me to jojo.
QUOTE(jojo @ Jul 28 2012, 08:21 AM)

I'll just have to try and ignore how bad I think I am at playing my violin
I was once in a very similar situation. I have what is called a multiple intellectual giftedness (dx'ed). For a long time, as beautiful as that might sound, this stood rather in the way of achieving anything. When I finally started sorting out what I actually got there, I found myself to be interested mostly in Fine Arts. So I started developing first my drawing and painting skills, before I finally ended up with music.
When it comes to art, I discovered limitations for myself as well. Not the one you might think of but still serious enough that I just knew I will never be satisfied with what I do, no matter how much time I'll invest. That is different with music. The way is much more defined, clearer. I cannot get astray so much. That makes it easier and more determined. When I discovered this, I completely abandoned art and focused on music.
I have a saying: what matters to you, you will do. And what matters most, you will do first. If it isn't important enough, or if there is something still more important, you will never do it.
So, as a matter of fact, I picked up drawing again. Or will be - on September 26! The reason behind it is that I love drawing. I like the activity, I like to still progress, I still like to try things out. But now without all the expectations I had, when I started it. It is just what it is and it is just for me, and maybe I will have an opportunity to exhibit in the future, but that is not the final goal. The final goal is, to have fun. It's a complete new definition WHY I do it.
And there is one thing more; even with limitations people got famous. Not that I expect you to. But those people with limitations that got famous were great in one thing: figuring out their limitations and making the best out of what they got, or even using their limitations to their advantage. So it doesn't always need to be the big thing. The thing that matters is that it makes fun - just like art is for me. Finding out my own limiations when it comes to art means, concentrating on those things I always wanted to do. One thing, I want to do I never find the time because of more important things (drawing fast facial sketches within seconds while fixing the complete personality and looks with just a few pencil strokes). But the other thing, I will do in September is finally an art nude class. What that would mean in relation to music for you, you have to figure out yourself. But when you do, I believe you'll find that you have no trouble at all finding the time for your daily practice.