I've found keeping a spreadsheet of a lot of tasks and how they're related helps. So say you have 3 projects, all with varying types of task. I would make the spreadsheet as follows:

Due Date, Goal Date, Project (or class if student), Assignment, Status.

Due date is definitively when I need to achieve it by (this can be artificial if you want). The goal date can change as my day/week gets hectic so I adjust according to the miscellaneous things that are impossible to account for. Project is like the Grouping of all tasks below it. Then the tasks are the incremental things that need to be done in order for the entire goal to come to fruition. Status tells me if it's completed, partly, or not.

This has helped me because if I'm feeling very committal one day, I can just crush a lot of stuff out. Then I can go "Well looks like I have a week before I have to get that done" so then I can freely budget fun time. It keeps me on track and helps me with balancing pleasure and work.

I've recently started tracking my hours too. It's weird but I think it helps with showing you how much you screw around when you work from home.