Sharpening takes a lot of failure to learn, but it is something you should try to learn if possible. Why not pick up a pack of cheap, fairly soft broadheads, like Zwickey Deltas or Ace. Take the last 8 inches of an arrow shaft as a handle. Then get a good diamond stone, a cup of coffee, and just practice on one head until it is worn down to nothing. Watch sharpening videos on youtube, and practice, practice, practice!
Take pictures and ask questions on here. Heck, we can probably set up a sharpening help telephone hotline with all the knowledge here on TG!