Hi. Greetings. Please note : Acne is a common problem but usually starts reducing at your age. Milk - excessive consumption can worsen acne. Reduce intake of chocolates and junk food too. Use a topical retinoid cream daily night. You may need a short course of antibiotics. If you get severe acne you'll need oral retinoid. Discuss other suitable forms of treatment with a dermatologist near you. If you wish to see me you could book an appointment on private chat or look up my details on Practo. Hope this helps. Warm regards.