Judging from the phenomenon you described, children have a heavy internet addiction. Then the first thing to do is to keep him away from the internet.
If you often play online games at home, you should disconnect the internet and keep your children away from it. If you play in an Internet cafe, you must force your children not to go to the Internet cafe. Of course, you can't take radical strategies, you must communicate with him and enlighten him psychologically. Tell him what the harm of indulging in games is. If it will lead to visual impairment, listlessness and physical discomfort, various diseases will come. If the child can listen to your advice, it means that he still knows himself. But if you tell your child the truth seriously and the child still won't listen, then it is necessary for us to ask a professional psychologist to make a diagnosis for the child.
Through expert diagnosis, at least what serious psychological problems do children have? Why epiglottis can be found, experts will give corresponding suggestions. The key is to let children divert their attention from online games. After all, the main task of children at this stage is to learn. Only by studying hard can we have a foothold and find a job. What should I do if I don't go to school now, have no academic qualifications and have a small grade? Nothing can be done. Therefore, we must reverse the child's thoughts and stubborn mentality.
Time can make everything forget. Don't worry, take your time.