Make sure she has proper grip this is the most important building block for a new shooter next stand facing the side of the bow while she is shooting and first watch her anchor point then watch to make sure she is not punching the release trigger then watch from behind and make sure she is not tilting the bow left or right also make sure her draw weight is not to much as this will cause her havalot of fatigue If She still has a problem go to the local archery shop and ask if someone can go out on the range with the both of you and watch you shoot and see if they see a Form issue most likely its a Griping Issue.