Before you start wearing makeup, you must learn how to take care of your skin. It's pretty simple--wash your face in the morning and at night and use a moisturizer with SPF. During the day also wear sunscreen on your face and body because moisturizers with SPF do not provide enough protection. It is important to wear sunscreen when you are young, to avoid skin damage when you are older.
If you have pimples, do not pop them, as that will cause scarring. Do not wear makeup on your face if you have acne. Makeup will clog your pores and it will be more difficult for your skin to get healthy again. Also, all the makeup you buy should be oil-free.