Answer:
you probably have attention deficiency/lack of will power to actually want to understand anything. It's not genetics its defiance.
Explanation:
Focus is lost due to distractions. When you have the urge or craving to do something else, your attention is diverted and in turn depletes “willpower energy” when trying to re-direct the attention. When your brain gets tired from overcoming distractions, you will have a hard time memorizing and learning things.