Focus, Ralph, focus...be absolutely focused. Any negative you bring in to a Working will also be magnified (of course, I just made it more likely by telling you that, but...that's one reason why the Art is so difficult - the more you know, the more you realize how little you know, and how much more complicated it is than you originally thought). So be absolutely assured in your will and intent if you choose to attempt this. And be sure to use the "Highest and best good of all" formula, or a variation.
As an example - if you thought it was such a lousy radio station, why did you bother applying to it? Any negatives you bring into a situation will bite you on the ass. It's too late...you are now on the karmic Path of the (semi-)Aware. So you can't go back to doing 'whatever', and ignoring influences and resulting consequences that Cowan folk (oops, NOT P.C. here!) don't have to worry about. So take some time to meditate, and think about what it is you want. Focus your intent. THEN go to work, magickally and otherwise.
Just my advice..do what you will. I do (*G*).