Tough to say exactly what you hit without the deer in hand. I wish I could say I got every one I shot at... but it hasn't happened. However, I have shot a few dozen and it gets easier. Seems like a messed up deer and a broken heart is something most of us go thru. Take it as a lesson and plan for better results the next time. Practice... practice ..... practice. It's late in the season. I think if you evaluate your practice sessions.... they haven't been happening like they were in August and early Sept. For tune of body and mind and bow... throw a few arrows every other day. It'll make the shot better in the woods. Take a couple breaths and pause just another split second before you squeeze that release if you're using one. "Is this the sight picture I want"? That should be your last thought before the arrow goes off. Twenty yards with todays equipment is just about "Slam Dunk" country. The only thing that makes it not so is hunter preparation, practice and the "Lime Jello" moments caused by buck fever. You've had yours... time to dedicate yourself not to do it again. Wish you luck.