I like both cinematography and directing...?

I love acting as well, but I have to narrow it down and I lack
confidence in acting.. :/

So, anyway. I love film and everything about it. I'm 14, I'm a
photography buff. I'm obsessed with angles, lighting, etc. My brother
writes screenplays as a hobby (wants to make it a career, he's 17),
and he thinks I should become a cinematographer because I've got a
passion for photography, and he thinks it'll transfer to the screen
well. But I also love directing- I love acting, but I'm more
comofortable behind the camera. I've tried directing shorts with my
friends and cousins and I really love directing..

Is it possible to go to film school to be both a cinematographer *and*
director?
My thoughts won't change. It's my life, it's all I've studied/done
since I was 8 years old. People always tell me that, haha. (:

And I'm 15 in less than a week.
(;