Ok this is totally unorthodox and not for everbody. When I was in college I bought my first bow becuase rifle hunting wasn't exciting for me. This was before too many people bow hunted. It was a wopping $140 with the works! Well I headed out to a local park and shot for a bit to get the hang of it.
Then I went back to the motel I managed and lived it. Since I couldn't shoot around the motel I put my target across the back office (not being able to play with my new toy was driving me crazy). Corner to corner it was 15 yards and I used an old potato sack filled with plastic. It was about 1 foot wide and 1.5 feet tall. For months I shot inside and never missed the target knowing that my ass would be grass if I ever missed it. After a few months I could put 3 arrows in a quarter without thinking at 15 yards over and over again. It was just knowing that if I ever missed the target I would be in BIG trouble by the owners becuase I would have to tell them what happened.
That first season I took my first deer with a bow, a nice 3 X 2.5 (the one side was broken to hell). Since then I have upgraded my bow and my range. I now have a huge yard with a 70 yard range in the back yard but becuase I'm not as pressured to get it right every single time my groups aren't quite as perfect. Now if I could just convice the wife I need to set up a target in the house (I know better than to even ask).