When I owned a house, I did a lot of work on it.
I realized after a while that, while I could figure everything out eventually by myself, the first time I did a particular repair or install, I generally made a mess of it.
So, either I had to buy enough materials to do it multiple times, which I couldn’t afford, or I had to live with the mess I made.
I have found that life is exactly like that, except that do-overs are not an option. You simply must live with the messes you make, in the process of figuring out how to live.
Most of what you learn is no longer applicable. Not for you, because your situation changes, and not even for anyone else, because the world changes so fast these days.
The takeaway lesson is this: don’t get born, and don’t force anyone else to get born 😉