Let's see if I can figure out how to keep a journal in a way that's useful and makes sense to me. Depending on life periods, I tend to divide my life in quadrants I want to focus on (this may match the 'modules' from the book in some ways, I'm still poking at the concepts and adapting my systems). Then I try to balance them all and fail or burn out, but a well balanced life still seems worth striving for so I keep trying

After the latest reshuffle, my current set of quadrants seems to be working out this way: self-sufficiency (skills), self-sufficiency (income), physical activity, creativity, learning and social.
For the self-sufficiency ones, I'm basically starting from zero, but I also expect this forum is going to be a good place to think through them and get better. It's hard to find DIY projects that feel feasible within my range, though I have something going on with my fence at the moment that should be workable at my current (non-)level. For the last three quadrants, they're generally balancing nicely at the moment, including in terms of time and money commitments, so don't need as much thinking about.
For expenses, I used to aim for "be able to survive on disability" (which I think was €800/mo at the time, and I really doubt I could do it yet at this stage) and "be able to live comfortably on part-time minimum wages" (currently, 25-30h/week would comfortably cover my total living expenses, assuming I could actually handle the job(s)).
I'm doing okay with the three big "pillars" of expenses, though nowhere near ERE levels (.....yet, if I want to feel optimistic!). Paying off the mortgage helped a lot, of course.
Housing - mortgage free, just insurance and HOA fees and basic maintenance now. The house is actually income-generating at the moment as I took in a lodger to help someone out, and while it’s going well I doubt I will risk it again whenever this arrangement ends. I need a lot of solitude and long stretches of uninterrupted (ideally uninterruptable!) time to be happy. Occasional short-term stays are fun though.
Transport - I haven't driven in two decades and never owned a car. I walk a lot and I'm looking at optimising bus trips a bit more. It adds up to €400/year at the moment. I'm trying to cycle a lot more lately. It's not saving me money because I was already walking everywhere within 5km

I always had a mental block about taking public transport or driving within that kind of distance. With the bike, it's going so much faster! My goal is to get more comfortable with cycling now when the weather is dry and the days are long, so I'm less likely to revert to walking when it gets dark at 5pm in winter. And I'm hopeful that because things go so much faster when cycling, I start expanding my range of "I refuse to pay for transportation to get there" beyond 5km. The end goal would be 20km so I don't need the bus for my longest regular trip, but that's definitely a stretch goal! There are no cycle lanes most of the way, lots of traffic, and basically I'm often scared to cycle on the main roads. I'm trying to get used to it now in small stretches of streets I know well but as soon as a car starts driving really close behind me I lose it. Seeing the
(re)post about the book Effective Cycling pop up on the blog the other day was really timely, I'm going to read that soon.
Food - My eating out budget is €60/mo which used to cover 4 meals, nowadays 3. I never eat out or order takeaways on my own outside of vacation, but my friends are spread out so meeting in the middle for a meal makes sense. I'm trying to make more local friends as well but finding my fellow weirdos takes time

Groceries are at €200/mo. I'm annoyed about that. I was averaging €180 and trying to get back to €150 before the recent inflation, but it's time to focus again on reducing it. Just paying attention this month is making me realise that some of my habits don't make sense, e.g. a number of products I selected 6 years ago because they were nice and the cheapest are now still nice but really expensive in comparison. For the rest of the month, I'm trying to mostly eat stuff I already have at home. This is not exactly going the way I expected, and I probably should learn how to make interesting sauces to go with all that pasta in my cupboards, but shaking things a bit is helping! I also made easy-weird pizza this week when I had a craving, for the cost of some flour, a third of a 99 cents tube of tomato puree and some grated cheese. Hadn't made that in ages, but I like these little victories!
I usually save about half my wages. I've been trying to negotiate part-time work since 2012 and declined/managed out/laughed at every time since just as long. It annoys me a lot that I cannot adjust the numbers of hours I work to match the amount of consumption I'm happy living with. I'm not sure I would be happy living 100% on investments, but supplementing that with regular income from a part-time activity would be nice, whatever that may look like.