Mossy, don' t be too hard on yourself. Animals are wounded by bowhunters, period. Especially when you first begin and you haven' t got your emotions fully under control. I' ve lost several deer myself, some were bad shots, others I thought were good and just ran out of blood. Most of my losses were early in my career. You learn from mistakes, you learn to control your body during that moment of truth. If you can truly shoot as good as you say, it will happen for you. Bowhunting is about up and downs. About 5 yrs ago I shot the biggest buck I' ve ever seen in the woods. He was 20 yds quartering away and I hit two far back and only got one lung. I bumped him from his bed which was about 70yds from the shot and never saw hide or hair of him. I had an airplane fly over looking, I got a trained dog, and I searched for 3 straight days and nothing. I honestly thought about that deer EVERY day for 2 yrs, I felt horrible, and I may never see another deer that big again. But, I kept at it and have killed many deer since and haven' t lost another since. DON' T GIVE UP. PRACTICE MORE. GET SOME SHOTS UNDER YOUR BELT. You may never lose another one, sometimes luck can go against you in unbelievable ways. One thing though, you mentioned that you shot high several times.... Is your bow loud, are the deer ducking your shot? Try only taking shots where the deer is not looking in your direction. A deer that sees you release will ALWAYS drop a considerable amount by the time the arrow arrives, even at 15 yds. Stick with it buddy. And don' t give up easily on blood trails, give 100% every time. Good luck.