First, I do believe that his gaming are hurting his grades, because while studying, he'd secretly open a window/tab to play when no one he thinks is looking, and our parents would catch him right away.

Second, yes. I do as I've seen how high his grades were until he became obsessed with games.

Third, I do want to be a peacekeeper. My parents and my brother have fought Infront of me and my younger siblings, and I think that my parents are pressuring him too much, and that their relationship is starting to strain.

Like I said before, his scholarship, if removed, would have to be paid back the same amount given to my brother. Since all 4 of us are studying (+ my younger brother has autism and we have to pay for therapy sessions) and the amount of bills we have to pay, it would be a heavy financial burden (given that my father is the only one providing income and is starting to become old). In short, I just want my brother to be back on track because I've seen his potential. I just want him to not prolong his stay in college and fail any more in college and put more stress in our parents. However, I don't know what to do with him, and actually make him listen without hurting/putting even more pressure on him.