I hate this advice, it's so counterproductive. Small changes are useless. It takes much, much longer to create lifelong habits (years, not weeks). These small additions make no sense. Life is not that long either and regret is the worst.

It's not about volume, it's about frequency.

If you want to lose weight, do as much as you can without jeopardizing health too much. Aches and fatigue are fine, it'll go away. Do A LOT.

Make huge changes, but not often. Prioritize correctly, that's it. I lost over 100 pounds while building a business. Guess which I failed at? The one that wasn't as important for my future. I was working out over 20 hours a week for about 5 months and lost it all. The only cute chart I had was my weight and waist.

Then I went and built the business afterwards. Worked on it day and night for a year, 80+ hours a week, every week.

I feel like it's been about a decade of me focusing on different goals and then letting them go

You shouldn't be surprised. 15 goals are... impossible. What do you want to do so bad? There are not that many priorities in life. Health, Family, Finances. Once you have those you can go travel, volunteer etc. 15 things at the same time, yikes. One is plenty.