Its not, in my experience, a fruitful endeavor. It usually just trotts out the fears and anticipation of the day coming up. Will I get to the market before all the green onions are gone. Will I find a companion to spend the rest of my days with?.
These practical and emotionally existential questions often plague me. Although I have been spending more time in the moment. Self destructive behaviors often still creep in. In a alarming yet comforting way. Knowing what is coming up, even if it is damaging is often more withstandable than the fear of the unknown.
After the day has gone by, though, it is often only in the living of the day that we get a glimpse of what might have been or regret what has become.