Looks like blackheads to me - especially on the nose. It could be a matter of hormones due to your age but it wouldn't hurt to use a face mask targeted towards acne. If you look up "face mask for blackheads" you'll find a variety that might help. A simpler solution if you don't feel like doing that is to put honey on your nose and cheeks, leave it 10 minutes and then wash it off. Also, using a 100% Witch Hazel toner before bed might help you a lot, it'll tighten the skin.