Don't think the deer went to waste, you just fed all the critters in the woods last nite. It's just part of huntin, most of us have had the same experience. The first year I started bowhunting, I had a doe walk directly under my stand and I leaned over and shot. I was thinking to myself, if I shoot her between the shoulder blades, it will either break her back or hit the vitals on the way through. Boy was I wrong. I hit her shoulder blade and she took off running with my arrow sticking out of her back, like a flag pole. Fortunately, later that year I was able to harvest her with my rifle. She had a slight limp, and my broadhead was still in her shoulder. That was the last time I ever used a fixed blade broadhead. That was also the last time I took a shot like that. Now, I won't shoot unless the deer is broadside or quartering away. Good luck and keep trying.