Diy : Septum Piercing ?

Alright, so i've been wanting to pierce my septum FOREVER. i tried it once, but i couldn't get the ring in. & My mom is totally against facial piercings & the Septum is the easiest to hide. I have a regular sewing needle, a safety pin, 18g ring & a cup of ice. what else do i need to do? because my mom won't let me get a hollow needle, or anything like that. i have peroxide, and a lighter to steralize this stuff. helpp?D: