What are steps to lead to completely clear, acne-free skin?

I have some acne that is moderately bad, but not completely taking over my whole face. Obviously, I want to get rid of it.

What are some foods I should eat more and foods I should eat less?
Does milk make acne worse, because I consume a lot of that.
And are there any special/different home treatments that you have found to effectively work?
Thanks

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