Definitely start with a simple recipe before you start to experiment. Like trevorc13 mentioned, most of my muddled flavors come from experiments, usually to many kinds of hops or to much. Without pulling any recipes out, perhaps try an Amarillo or Cascade, an ounce at 60min, an ounce at 30min, and ounce at 5-10min and an ounce at flameout (assumes a 5gal batch). Skip dry hopping at first. Simple grain bill; mentioned above, IPAs (American IPAs in particular) are all about the hop character. Go simple, get a flavorful IPA, then start trying new things.
Of course this is all predicated on the flavors being just muddled and there not being any off-flavors that would indicate a problem elsewhere.