Face masks for oily skin??!?!?

What are some face masks for oily skin, i have lots of pimples (acne) and scars and my face looks horrible, right now its the summer, and when I go back to school, i want smooth clear skin! but its almost impossible :((( im 13 and do you know some face masks i can do at home that can reduce pimples/oils?? thank u <3