In case you don't understand this way, let me explain first: gambling is a complex psychological activity, and everyone's gambling psychology is nothing more than seeking excitement, competing for strength, following the crowd and getting something for nothing. Among gamblers, the incorrigible and unrepentant belong to the insatiable. Such people are hopeless. Your brother may pursue excitement or be competitive in his early days, or he may be tempted to go astray. But now he has said that he will never gamble again, which shows that he has repentance. Why do you say you don't gamble and gamble? Psychologically, he has become dependent on gambling, and his personality is flawed!
If you have the conditions and ability, it is recommended to see a psychologist. Because I have obsessive-compulsive disorder, I know how cruel it is to give up the habit. You can't do it by your brother's willpower. He is a patient now, and you and your family can't cure themselves by the patient. I don't want you to persuade your brother to understand the truth of gambling cheating, and I don't want you to talk about taking part in outdoor activities and actively participating in spiritual civilization construction. If you really care about him, take him to the doctor as soon as possible. If you and your family are numb, give him up. Because what I see from your words is more helpless and disheartened, I still want to advise you that everyone makes mistakes. Your brother just made a mistake and needed the strength of his family to get him back on the right path of life.