you have to find something you like. For me, I love triathlon. I do at least 1 full distance Ironman per year, and I love the training and stress relief. My wife does it with me, and it's like a mini date every day at 5am.
I also love my bermuda tif way 419 grass, and have a greens mower. I keep my backyard grass at .5in and it's like a pro field with stripe patterns. I get to mow it every other day, which only takes 10-15 minutes for ~5,000 sq ft. I'm into the fertilizer and everything. My own zen garden. My kids love playing on it.