Everyone is different, but one thing is constant and is something to consider—especially with being an amateur level archer is practice quality over quantity! I shoot year around, because I am a competitive archer as well as a bowhunter and I may shoot 60-100 arrows in a day, but that is over the course of the entire day. I will not shoot over 2 ends of arrows (16 in my case) at one time then I go rest and do other things. Shooting until you can't shoot no more is a very bad practice, regardless of if you are a seasonal bowhunter or a competitive level shooter, but especially for the seasonal archer—it becomes a breeding ground for form flaws, mistakes and loss in confidence, which is everything to the archer. Doing archery related exercises with free weights and aiming exercises are a much, much better idea.
I start my practice sessions with a few blank bale shots, then I do an aiming practice session (move up to 15yds: draw, anchor, hold/float the pin on the target for 5 seconds and let down and take a few steps back and repeat until I get to 45-50yds—do not shoot the arrow, you are practicing aiming and holding) and then I start out shooting at distance (usually 60yds or 70yds) and then move up shooting a couple of arrows every 5yds until I get to 15yds. This builds confidence as you move towards the target, as the groups usually get smaller.
I use a variety of targets, 3D and bag targets. On the bag target, I take a piece of cardboard and make aiming dots of varying sizes with sharpies with quarter size aiming stickers in the middle (aim small, miss small). My 70-60yd marker is the size of a quart mason jar lid and reducing in size as I get closer. My 20 and closer dot is the size of a golf tee.
Here is a link to various target faces that can be printed on a home printer.
http://www.dewclawarchery.com/printable ... -a/136.htm. Just staple them to a piece of cardboard and you're good. The good thing about shooting some these games that you can print out is that it makes you concentrate more on the shot and breaks the monotony of just mindlessly pounding 3D targets or dots. You can have buddies come over and make a game out of it. Throw a ball over your shoulder, hit it with a piching wedge, throw blindfold, etc.... and shoot at unknown yardage at some of these while keeping score is one way to get some good practice in accuracy or shot making, while not wearing yourself out. If your buddies can't come over then pick a game, set a reasonable goal and a certain number of arrows and shoot for the goal. That is one advantage tournament shooters have, is that we shoot under-pressure and search for ways to get hyper-accurate, which does translate into the woods.
I hope this helps, or gives you some ideas! If I can help, just let me know via PM or I mainly can be found in the compound forum.