2:45 AM, Tuesday June 15th 2021
Try watching the Becca Rand review. You may find it helpful.
Doing an exercise and then trying to test any difference it makes is not a good idea. You do drawabox and you do your other 50% of creative stuff. Stick with it, don't just do the minimum and at some point you will just notice that "this was a bit easier" or " this is better". Learning happens with with long plateaus and then sudden steps up. It is not linear.
One saying I always remember relating to this is that "We learn to skate in summer and swim in winter". Basically a change happens when you are not actively trying to improve.
For myself I can only say that it has been hard work for me, I have been doing it for about a year I think and have just passed Lesson 5. But, it has definitely been worth it as I notice a huge difference in the ease with which I see and draw.