Help getting rid of acne?!

Help getting rid of acne?

Hell, i am 16 years old and I have had acne since i was 13, but it started getting worse from 14-16. The acne is mostly on the sides of my cheeks next to my side burns and on my arms and a little on my back.I tried proactiv but i found out i am allergic to benzoly peroxide. I tried acne face wash with Salicylic acid and spot treatment with Salicylic acid but they have not helped much. I drink 12 8 oz glasses of water every day, i don't eat greasy foods, i workout at the gym 6 days a week, wash my face 4 times a day and shower everyday. I talked to my doctor about my acne and she prescribed me with a oral medication called Doxycycline. I have been taking Doxycycline for 5 months and have not noticed any improvement. So what am i doing wrong or is it just my age, thats what alot of people tell me. Thanks in advance.

ok, that is good, but you should also know that if you just use products that dry out your skin, you kneed to use a moisturizer at night or during the day (i have very oily skin so i usually use it at night). Otherwise, your skin will dry out, and then your body will produce more oil on your skin, clogging more pores, forcing you to use more drying products, and creating a vicious circle.