Moisturizer Answers

I am 14 going on 15, & all of a sudden my acne has been getting a lot worse especially during this summer. The only area where i’m broken out is on my forehead, & I’m guessing i have oily skin. I’ve tried proactiv in the past & it worked, but now it doesn’t seem to help anymore. i’ve also tried mary kay facial cleanser/moisturizer & clearasil but that seemed to irrate my skin & make it worse. What are some things i could try to help it?