How can i stop breaking out in pimples?

I always break out on my forehead, nose, chin and along my jaw line at the bottom of my cheeks. I hate how they look! I want really clear, helathy, bright looking skin. Im fair, with rosy cheeks. At the moment i just wash my face with warm water and use a moisturiser in the morning, and at night i wet a cotton ball with warm water then add some tea tree oil, wipe it across my face then use moisturiser. I dont want to use any of the harsh unnatural cleansers, thats why i do this. What am i doing wrong? How can i stop breaking out? Im a teenager btw.

Any other beauty tips you might have for clear, bright, soft skin?

Also, how can i make my eyes look big, bright and healhty without using makeup. If that is not possible, then with using makeup? thanks 10 points for best answer