What skin care regimen/system would you suggest for me?

I have been dealing with acne since I was 11. I am now 14, and it continues to get worse, spreading to my back, shoulders, and chest. I get whiteheads, I have terrible blackheads on my nose and cheeks. It looks like a strawberry! They are everywhere! Its gross. I get these huge whitehead zits on my cheeks and chin. I also have oily skin.
Though, neither of my parents have the money for me to visit a dermatologist. So I need a skin care system to be under $50.

Thanks in advance!