Solution: Keep a practice journal and set weekly goals. Budget your practice time in your journal the way you would your finances. Break goals into small chunks and keep a record of how you actually end up spending that time. Make adjustments regularly and cut yourself some slack. Ten minutes of focused practice can be more helpful than two hours of tedious drills, particularly if your mind is elsewhere. Instead of panicking over minutes and hours, focus on what you can achieve in the time you have available.
As the Enlightenment gathered steam toward the end of Bach’s life, such views seemed to many of his colleagues to be outmoded or even a threat, as the product of the very same ancient, superstitious religion that the Enlightenment sought to escape. (There is an amazing book about Bach’s encounter with Enlightenment attitudes if you wish to learn more about this.)