I think gesture drawing is extremely difficult to grasp. I would suggest learning about human anatomy first. I understand that gestures might be confusing if you do not know how different body parts affect each other. I would definitely recommend learning about plastic anatomy. The amount of information may be overwhelming, so don't try to understand everything all at once. It's easier to understand the bones when you're learning about the muscles and how they attach to them, so you don't need to start by learning about the bones. When you can draw the human body and its muscles confidently, you can return to gesture drawing to remove stiffness from your studies and add life and energy to them. You don't need to hurry. Everything comes in time. Of course, my response is simply a suggestion, and the ultimate decision is up to you. Anyway, I encourage you to look up more information on these topics and develop your own approach to learning.
