I am in a stage where time is precious, so I am very choosey of my extra curricular activities,in general I go in between programming,ID and Neuroscience-AI research for the bulk of my time. Sometimes they mix ( UI/UX for instance) but each one has enough variety to keep me entertained for ages. The remaining time is spent doing semi related projects, fashion/illustration/ art projects,writing fiction to name a few.
I've also think I got most of the crazy stuff I wanted to try out of the way ( cause I am poor, else I would probably be trying to colonize mars), a few extra curricular things I can remember getting into: Whitewater rafting/ kayaking, stage building for music festivals,freesbie golf ( harder than it sounds but not as crazy as ultimate), DJing, Piano, Guitar, (I have an ukulele I sometimes play for dramatic purposes ), fire dancing/ juggling, I ran a bar, a hotel, worked in coffee shops, trained dogs and was a tour guide ( in Hollywood out of all places), spent a ton of time playing videogames, pool, drinking,getting high etc,etc, most of these things I did mostly for the experience and some became obsessions.
In general I think I would die the day that I can't get excited about something ( I think designers are a curious lot), but I am conscious of where my main interests are and drop other novelty things as fast as I pick them, right now I am about to get into digital clay modeling and might have to relocate next year and who knows what I'll end up doing.