How do i prevent my skin from breaking out with more pimples/acnes?

See your doctor: Acne is a very complicated and has many forms of severity-skin disease An antibiotic alone sometimes is insufficient as the hormones causing oil to be secreted is the culprit. Sometimes over washing your face makes it worse as well as not washing your face enough. A more thorough history and exam is needed. As a last resort ask your doctor about Accuta

Acne: Acne occurs at your age for a variety of reasons, and most if not all , are impossible to change without medication. You have hormones, bacteria and skin that blocks pores instead of exfoliating. Try keeping your skin clear and a over the counter benzoyl peroxide cleanser and topical application.