Don't follow rules on purpose.
Read as much literature as you can on how to write well. Read RAMAP (realistically as much as possible). But never make a conscious decision to follow a rule. Let what you read get inside you and influence you subtly.
Ex: There's a good rule out there about showing instead of telling. You can find it if you Google it, I'm sure. "Show me the character is angry, don't tell me she is." You get the idea.
Thing is, as soon as you delete a good line or interrupt the flow of your story because you've told instead of shown, or used a semicolon, or used the passive voice, that is where that rule has failed you as a writer.