Spent whatever minute amounts of motivation/discipline/willpower on building simple and effective "systems" that require no motivation/discipline/willpower.
For example, I want to get better at playing piano, but it's both hard to set aside time, and hard to get myself to sit down for a set amount of time and Do Piano. I tried putting the keyboard in a few places, including directly behind my computer desk (literally 2 feet away from me), but there was too much friction involved in moving my chair and changing the lighting etc--it really wasn't much, probably 15 seconds of effort, but it required deliberate intention.
I discovered, though, that if the keyboard is on the landing outside my office with a dedicated chair, then I'll see the setup on my way to/from the kitchen, and it will sometimes feel inviting--often a nice distraction while waiting 10 minutes for a meeting, or while procrastinating on something else I'm trying to get motivated on. And sometimes 10 minutes turns into 30 or who knows how long, and my taxes may be stalled out but I sure am making progress on the fugue I'm learning.
Source: diagnosed ADD for 20+ years.