I dunno, I also played a lot of competitive M:tG, between 17 and 22, but I found it very fulfilling. I made some of my life-long friends through it, I went to places all over Europe (for tournaments) and overall had a ton of fun. That was mostly before the advent of Magic Online, I understand that now Magic can be largely played like other online video games (plus the skill level is way higher, because the most obsessed people can just practice 100 hours per week), whereas in the past it explicitly required you to socialize to have playtesting partners, borrow cards, split rides to tournaments etc.