I'm not sure if BP's are like dogs, and can 'smell' fear, but I find that generally, if you are confident, even pretend to be, it helps big time. My husband and I have had several snakes for almost 3 years now, and about 2 weeks ago, I got bit by one of my boy BP's. It was COMPLETELY my fault (stupid feeding error), and while it stung and was bleeding a lot, it wasn't a big deal (of course, he's only 5 months old as well).
The best way to get over the fear of being bit, is to get bit. That may sound weird, but it helps to find out that, yea, its really not a big deal.