im a big promoter of septum piercings. it was the easiest piercing i ever got, not painful, never had any problems with it. but you probably already knew that since you said 'repierced'. anyway...i mostly like it because i can hide it for work. and i think girls look really cute with them. i think it would look good on you for sure.
Your face is close to perfect so don't do anything to detract from that natural beauty, I agree with your friends who say "MAAAH DONT SCREW UP YOUR FACE!" Some girls need facial piercings but please believe me, you don't