When I was in junior high and beginning of high school I used to get my computer taken away for entire semesters, oh god it was horrible. My mom was home all day every day too so I could never sneak in some time to play. Once I think though it was pretty good for me. I started just reading books all day and going to bed at like 8, instead of gaming til 3 am and waking up at 6 for school half dead. Never stopped me though from jumping right back on when I was finally ungrounded, and returning to my former self.