I think you should go for it! Facial piercings, unless gauged, hardly ever leave scars, so just don't go above 18-16 gauge. Most work places will let you keep in a spacer labret, because they are hardly noticeable. I encourage you to do all that now, since you are so young. I always hesitated, and now I regret not getting anything done to enjoy in my youth, because now I have a job where I can't really do that kind of stuff.
Edit: I'd also like to add that alot of larger scarring is due to infection at the piercing site. Solution: wash the ring and hole diligently with Dial Antibacterial soap on a q-tip 2-3 times a day, and you're almost guaranteed to avoid infection. I have a lot of friends who pierce/guage/tattoo etc. and this is how they take care of them.
Edit: I'd also like to add that alot of larger scarring is due to infection at the piercing site. Solution: wash the ring and hole diligently with Dial Antibacterial soap on a q-tip 2-3 times a day, and you're almost guaranteed to avoid infection. I have a lot of friends who pierce/guage/tattoo etc. and this is how they take care of them.