Not only should you care about your studies, but you should also care about your life. For example, if he wants to read a book, you can tell him to watch his eyes. Don't read too late, it's not good for his health.
Should be taken care of. It is inevitable that there may be girls you like in the third grade and adolescence. Parents and friends should be good at guiding children, don't intensify contradictions with children, and give you care;
Note that inadvertently let him know that you love him, not just knowledge.