| I've seen this with a novice who tried to draw too much weight too early on. They struggled to draw using the back muscles, couldn't handle the weight and released as the 'shakes' started to affect the aim.
The solution in that case was to practice with a lighter bow until the 'feeling' of the draw 'on the back' was understood (if you see what I mean), and a repeatable anchor was achieved.
The use of a clicker might help, but the basics/form should be sorted first (my opinion only).
Alan |