I used to be pretty solid at Smash Melee. I lived with M2K while he was top 3 (arguably #1) in the world, and we'd play for like 8 hours a day. I'd say I was "semi pro", if that's a thing, though I rarely actually competed in tournaments. (I'd always drive M2K to tourneys, which he'd always win, so I felt it was a waste of money to enter them lol)
But now my hands are getting old and I'm out of practice. I can still hold my own for sure, but I don't have the hand speed or dexterity I once did.
I still love that game, even though it definitely destroyed my hands.