Where can I find acting schools?

Where can I find acting school here in Los Angeles? I'm only 17 and I want to start training for act and yes I know you must have talent but I need an affordable school for a low income family because i asked my mother and she is will to help. Though it took me 3 years to make her realize that I really want to be in the big screen. But please people if you can be help me out with this I practice daily for acting i try different moods, character, and emotions...This is the most passionate I've been for a career! I am will to do anything to complete this unfulfilling dream!