IMO, the worst thing you can do is shoot your bow to much at one time. All it takes is for your arm to start to get a little fatigued and your shooting will suffer, then you you get frustrated and that makes things even worse. I only like to shoot about a dozen arrows at the most before taking a break if I still feel the need to shoot more. It can be hard to put the bow down when you are dead on or when you are off some as well.