If your 14, you will heal rapidly. I would not suggest over treating at your age. Please see a board certified dermatologist. Also as your a minor, please have your parents help you see a treating Dr.

Speak to your Dr about what creams you can use for this. I know a gentle salicylic acid BHA wash will help shrink pores. Niacinamide by the ordinary has also helped some.

It depends how bad the hole is, If the below do not work over a few months. I know many heal naturally once the control the oil causing the blackheads.