Great article. Working on my own startup (https://encore.dev) I also feel the urge to measure my progress in terms of output, not outcomes. I have to constantly remind myself that what matters is the outcome. Focus on producing a concrete, visible artifact every day and use that as your measure of progress instead.

And make sure to stay sane; startups are not a balanced lifestyle but that just means we need to push ourselves harder to find balance, as opposed to pushing ourselves even further out of balance.