RE: how much practice?
I have been shooting about 100-200 arrows a day for about a month now. I am getting ready for a hunt in July.
Speaking of getting bored drilling at the little spots, I have found it very fun and interesting to put an object on the target. For instance, an apple or potato makes it fun for me. Instead of just hitting the black mark on the target, it's fun to watch the apple "pop" when the arrow hits it.
I know this sounds like maybe it isn't that great, but just try it, you'll see what I mean.