Man is very complex. Willpower helps you to achieve your goal, but not all people have this strength.
Yes, if you try to understand yourself, you can understand that even with ordinary knowledge, such as learning foreign languages, it is very difficult to come up with understanding and start learning something. Here I am learning Chinese. Not to study deeply, but to orient a little in colloquial speech. This is necessary for me at work, but it will also help in life - when I can communicate and talk with new people, try myself for life, so to speak. So, forcing ourselves to do something else, besides what we already have to do and do every day, is not an easy task.