Learning is always coupled with doubt. We never know when the knowledge will “click.” Learning is not always guaranteed, either. There are subjects or tasks where we simply do not have the wherewithal or dedication to put in the necessary time; the issue is not ability but desire.
Desire makes the difference. With desire, we can drive through the doubt and confusion. It rips through those moments when the information is overwhelming.
Any subject we are dedicating ourselves to learning will seem insurmountable and complicated — until it is not.