To draw or not to draw? That is the question.

Went to a live model drawing session today. Oy. It's really hard and I am just not a drawer. I would like to be... I think? It just seems so beyond my ability to grasp it. The amount of work it would take seems overwhelming. Partially because I vacillate between being really into it and being utterly frustrated and bored. And these two things can toggle between each other almost instantaneously. I find it maddening. I can't decide if that means its something I should really put some effort in to learning, or if it means I should just not even bother?