Stop boxing because you are bored at 50, what a nonsense argument to do such a thing. Myself I have and had several times where I was thinking, why the fuck im I doing this. Just keep on going, keep on playing, take some rested, do some fun stuff, and then go back again. By all means dont let yourself get worried or put down by people that flaunt with getting to 60 in 2 days, who cares . Just keep doing what you are doing, it got you to 50 already.