is a common problem in your age most of the people suffer from this at this age, it is mostly the comedos which gets secondary infected and creates problem never try to squeeze your acne chance of secondary infection increases.there are following tips you can try-
clean your face daily thrice with clean normal water
do not apply any cream on face
do not bleach your face
all this will help to reduce your acne despite of that if at all it comes then you can try a tab-Doxy 100 mg once daily for 15 days and see the result.