RE: how many times
The first day I went bowhunting, I was 11 yrs old. I could put put every arrow out of my 50lb bow in an apple at 20yds.
I shot every arrow in my quiver that first morning, 5 shots, and never cut a hair. I was on the side of a mountain, and though they were all passing 20 yds in front of me, they were almost the same distance down the hill. I shot over every one, not knowing any better. Funny now, but I was pretty upset back then. I also would panic and shoot at the whole deer, I think I missed 10 deer before my father sat in the stand with me, and coached me through the shot on a nice fat spike. I've now killed the past 18 deer I've shot at, over the past 4 seasons, knock on wood, and I think I had almost 10 in a row before that last miss.
P.S. That part about falling down the hill when drawing is too funny!