I'll just throw something out there that may go against conventional wisdom, but ...

If you've got room, back up to 50 and 60 yards. Assuming you've got all the basics of form and all down (I'd suggest looking at Matt / Pa's thread in the target archery forum at some of the more advanced archers to check yourself), sometimes it helps to shoot at longer distances just to make the yardage you're wanting to get confident in seem like a chip shot.

Try it afew times and see how it does; don't go crazy trying to start shooting 50 all the time when you're not real comfortable shooting 40. It's just a thought, nothing more.