Acne Help! Please!

I'm in my teen years & understand that acne is a issue among most of us. However, I've has acne ever since I was 10 & cant seem to find the right products or remedy! I mostly have some acne scarring, blackheads, and some premature pimples I guess you could call them. I have large pores, and extremely oily skin also.  I've also cut dairy out of my diet, since I've heard that may help. I also run & do some other light cardio/toning. My money is just going down the drain since I can't seem to find the right products 😫😫 Help!