I found this comment compelling as well.
Another way to look at it is instead of just writing down progress (things you’ve already done), project into the future. Write a six-week plan and lay out your goals and steps you need to take over the next six weeks to move toward reaching those goals. When I’ve done this, I check in with the plan at least once a week to see if I met actions for that week (then you could journal about it as well, as you suggested). Then I look over the entire remainder of the six-week plan to keep my mind fresh on what I need to do, then I concentrate on just the next week in front of me.
I don’t write these out again every six weeks, but definitely when I’m feeling stagnant in my growth/progress.