Hard, task, silenceheals. I would make little mini-goal sheets each day so you know what you want to be doing in each segment of your day. When I use to journal daily, doing so first thing in the morning and getting my thoughts organized for the day helped me.

I have different folders for different tasks, my school work, work, day-to-day projects; you probably have notebooks for each subject to take notes during lectures? Write a paragraph at the beginning with your goal for that lecture? Focus for that moment so you can refer to it when it gets hard/you are in pain, distracted, your thinking is going downhill, etc.?

I like to use quotes too, when I'm writing a paper I will often first find a quote and put it up there for my first few drafts.