Amy,
Best suggestion is to go somewhere without black flies. You need to learn to “help” decide where to go to hunt. You have lots of choices, like a spring turkey hunt, or hunt bears where there isn’t black flies, or go to AFRICA!!! (just to name a few) And there are LOTS of ways to “help” decide where to go. (I’m sure you know what I mean!) Personally, I don’t like to hunt in the bitter cold. I DON’T GO when it’s really cold. Keeps it fun for ME!
Best of luck!
Belinda