deerhunter1234, I don't know how old you are or how strong you may be but there are a few exercises that the Olympic bow team used years ago that can help any archer or bowhunter improve their strenght and in turn their effectiveness with their equipment.

Your arm and upper back muscles are the one that work for you drawing your bow.

For your back, do single and two handed Lat Rows.

Single:Kneel on a bench or chair. Place one hand and the knee of the same side on the bench. The other foot is on the floor and your back is horizontal to the floor. Keep your head looking striagh ahead. With the other hand extended toward the floor with a weight you can lift, draw the weight to your chest in a slow and smooth motion. Raise your upper arm no higher than even with your back. Do as many reps as you can and then switch hands. Rest one minute and repeat. do about three sets.

Double hand Lat row. With two hands on a bar bell a little less than shoulder with apart, at rest about waist high, knuckes out ,plams facing your legs, raise the bar bell to your chin or mid neck area letting your elbows flex outward.
Do as much weight as you can, three sets of five reps. Increase the weight as you strength increases.

If you do not have weights, do push ups.

Also do tricep dips. Place a chair to the wall so it can not slide away, then face away from the chair with your arms extended down, your hands on the seat, knuckles facing the same way you are facing. Your feet and legs extended and lower yourself up and down.

Do as many as you can and always keep track, a written record of your progress. None of these takes a lot of time and can be done in the home.

You will get out of this the effort you put into it.

Work hard and do well. It will be rewarding in more ways than just your archery.