Use
imgur.com to host your picture, because it's not working.
What I did, though, was print a picture of a guy with the hair I wanted, then I gave it to the lady and said, "I want hair like his." She cut it exactly like that, but if yours tries to feminize it, just tell her you would like the male cut. If you're nervous just make up an excuse, like you're in a play or something. It feels scary at first, but once you're done with it, you'll realize it wasn't so bad. Good luck, and remember to just relax!