Doing search engine marketing is going nowhere

going nowhere how? no clicks, clicks but no sales, or spend with nothing to show for it? they're different problems. no clicks is usually bids or tiny search volume. clicks and no conversions is nearly always the landing page or the wrong search terms, open the search terms report and you'll probably find half the budget going on stuff you don't sell. if conversion tracking is set up properly that's where I'd start. without it you're guessing.