I actually find the list thing helpful, for me, if my "seat of my pants" approach starts to let me down.
I make a decent list; for some things, I'll even do a spreadsheet. But I'll organize it in a way that crossing off an item is actually a bit of a rush / makes me feel like I made substantial progress. Also, having a "granular" enough list makes you aware of each small step you take towards the goal. And having to sit there and THINK of the concrete steps well-enough for me to write them down helps break down the goal into tangible bits.
...But yeah... you have to be careful not to lose the list.
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An issue I'm having trouble with now is weight / exercise. I really want to lose a large chunk of weight. I've done it twice in the past, but at the time I was living much more ethereally and was far more "in my head than my body," so it was easy to ignore my body's discomforts and impulses. Now that I integrated more into my body, my body has more power over my will, which I don't like... but what can I do?
Yes, it's possible to trick yourself into doing certain things. If you can redirect your mind, you can ignore body impulse. But you kind of have to get in the mindset.
I also agree with whoever said productivity is overrated. I've had to come to terms that I will never be a J-type. I'm not productive, I'm exploratory. My productivity is about learning and understanding experiences and ideas -- how things work. I can't live in that tiny regimented box. This has some negative side effects, but oh well.