I kinda realize that the most important factor for personal success (whatever kind of success you want) is mental stability.
Like, John Carmack said that he NEVER burned out, never went into a dark corner (verbatim from his interview), and everyone agrees that he works like a machine. And I don't think he actually spent a lot of mental training to achieve that stability, because, he has been like that from a young age. This is THE best thing you can have in the world, if you want to achieve something, anything. If you don't have the mental toughness, you won't be able to make through that 10,000 hours (cliche, I know). I guess that's also why many self-help book talk about being consistent -- to be consistent, is to have mental stability. And I think there is a whole difference, between someone who trains his mental to stay stable for 6 months, then collapse, from someone who actually doesn't need to train and just be stable somehow.
This also leads me to realize that good sleep is one of the fundamentals of a stable mind. As a parent, I actually don't remember when was the last time I had a good sleep, and my definition of a night of good sleep is perhaps just trivial for someone else. At the same time, I consider myself lucky, because at least I don't suffer from serious mental issues. I still have a job and a house, and that's better than many out there.
This then leads me to despise the human body. It is a machine so delicate that you have to be very lucky to be super productive, whatever your definition of being productive is. It seems to ignore the input in short term (e.g. you can eat garbage food for a month and nothing really happens, or, you can sleep 4-6 hours every day for the last 6 years and still function normally), but once the long term shows up it is very hard to reverse. And there are so many theories focused on it that we have no idea which one is best for the individual. You might as well spend years doing A/B test on yourself and still have no idea what the hell is going on. Or you need to be super rich to have some medical team monitor you 7/24 to figure out what the hell is going on.
> Like, John Carmack said that he NEVER burned out, never went into a dark corner (verbatim from his interview), and everyone agrees that he works like a machine.
> https://x.com/ID_AA_Carmack/status/2069799283369345247
That's because he was the one burning people out while he was there living out his hobbies.
I sometimes think about the same. Its a sad truth that if you bad days those days may be at the worst moment. Sleep definitly helps for a good mind but also exercise!
Carmack always seemed to have a really strong idea on what was important for him to work on. How much of that is mental toughness vs having a believable purpose?
Believable is important because you have to internally 100% without a doubt believe that what you're doing is the right thing to be doing now.
As soon as the "what ifs" starts to creep in for the big picture items or goals, that can destroy everything. I'm not talking about running into technical implementation problems along the way (those can be fun), it's more like "did I pick the right language for this?" level of questions that sit in the back of your mind.
Personally when I find something to work on that I like and will have what I think is a favorable outcome, it's easy to put in 8-10 real 100% laser focused hours into a task every day, even if it spans weeks or months. I'd like to think most people can do this too, the hard part (for me at least) is having these things to work on.