Form practice is far more important than distance practice. Sign up for Archers -Advantage and you can print target faces with reduced sizes to represent longer range while shooting at 8-10 yards in the garage. Dozen arrows a few time a week in the garage and then a day or two at Kenmore per month and you should be fine. 20, 30 and 40 yards doesn't really give you anything you can't get at 8 yards. Often times it's worse.
First question I ask when giving lessons is, "Do you want to be really good or do you want to have a lot of fun?" If the archer says "Really Good" we almost never shoot further than 8 yards for the first 21 days. Heck, the wife didn't even shoot an arrow for the first month as all her beginning training was done using an airbow attachment. Form is everything! Just not so much fun as watching arrows arc across the sky then quiver at rest within a far away target
