Most of my "projects" are dyno mules. I try to put a lot of time and effort into trying new things so that I can help you guys make more power. I've been getting hot and heavy into camshaft stuff, so I have a little 5.0 SBF that I'm getting ready to do a lot of cam testing with.
I've had project cars in the past: 1990 Fox Mustang LX 5.0 that I used to play with at Ohio Valley, 2002 Mustang GT, Shelby Cobra replica with a 428FE, (even had a '73 Corvette) etc. For me though, I just enjoy working on the engine stuff a lot more than the car stuff. I can live vicariously through my customers.
I'm 46 and I'm learning to "find myself" a little better as I get older. I've learned that one of my personality traits is that when I get involved in something, I focus on it so hard that I get sick of it. I'm an avid shooter. Been shooting since I was 9-10 years old, everything from skeet to trap to USPSA pistol matches, target rifles, etc. Got so involved with a new 6.5 PRC rifle last year that I got sick of shooting. It wouldn't shoot a 3" group to save its life when I first got it. Finally ended up with a 1/2 MOA @ 100 yard group with factory ammo and then I got tired of messing with it. So this year I'm trying to split up my goals/hobbies/projects so that I don't get sick of anything.
The end of last year, I started taking flying lessons. Been wanting to do that since I was a kid. Will have 15 hours by the end of this week, going on a night XC Sunday evening.
The YouTube stuff is fun. Right now, the YouTube income is paying for my flight lessons and my wife's Invisalign, so make sure and hit that "Like" button ROFL