Problems with shaving facial hair for the first time? Please help!?

First off, im a guy. Im 14. Im really hairy and i seriously need to shave. Some people have said i have got bum fluff! Thats not good! My facial hair goes right up to the top of my cheek bone. The hair makes my face look darker because its black so when i have tried shaving it slightly, i just end up with a huge white patch on my face. I dont wanna shave up to my cheek bone because i will look retarded and stupid with thick,black shaved hair and the top of my face! Basically im just scared that if i shave, i will end up with a darker top end of cheek and light lower cheek! What should i do?