Writer's block has actually never been a big problem for me, surprisingly. It may be all the creative writing courses, but if I'm given a topic, I can write about it for ages. It's the editing I hate. Photography is hard; I definitely don't have any natural aptitude for it, but I've gotten better. You should see if you can take a class at some point when you're in college, just for fun. They really do help, and there was virtually no homework in my class.
I absolutely love violin music. It amazes me when I see people who can express themselves and the music so beautifully through the instrument they play. Is it something you eventually learn, or does it just come naturally to some people? Don't downplay yourself to me girlie, anyone who can play violin and piano is talented in my book xD. And the money your parents spent will be put to good use when you make a career of this someday.