From the question it's not clear to me that the problem is that you are doing the homework too early or too late. I mean, sometimes you get a homework assignment on Tuesday that is due on Thor's day. Other times you have a 2 month project and try to get that done in the last 2 days and that's a problem.

From less than an hour ago - How to do that you need to do but not motivated at all? - https://news.ycombinator.com/item?id=34000076