So here's the new plan. Every day, get up at 5:30 a.m. On Mondays, Wednesdays, and Fridays, get to the gym when it opens at 6:00 a.m. and workout until 7:15 a.m. On Tuesdays and Thursdays, do yoga/stretching at home (while Nell goes to her gym) from 6:00 a.m. until 6:45 a.m. until Ezra wakes up. I'll do my long runs/bikes on Saturdays and Sundays.
Also, I'm meeting with a nutritionist next week. Since I lost a bunch of weight and became (relatively) healthy ten years ago, I haven't been very restrictive on my diet, and I've actually been less attentive as I've increased my endurance endeavors. But as my goals become more intensive (e.g., a 100-mile run), it makes sense to focus on all aspects of health, not just training. For the past couple of weeks, I've been (trying) to keep a food journal, and I've discovered that I eat a lot more than I thought, and I tend to snack on junk food later in the day. We'll see what the nutritionist recommends.