I have been bowhunting for 20 years this fall and have had way more missed oportunities than tagged animals. I still look forward to bow season like I used to look forward to christmas as a kid though. Learn to enjoy the archery part of bowhunting and you will gain more confidence. I try to shoot from the time the snow melts untill it gets too cold to shoot again. That year round practice helps to give you confidence that when that deer does come into range that bad boy (or girl) is yours. Bowhunting will also make you a more effective firearm deer hunter as well since you will have much more time in the woods to study the animals and alot more "missed opportunities" to learn from. Take it in stride and try to outsmart him again.