How to Get Unstuck With Quarterly Planning

Daniel Bell: I easily identify two priority tasks that need to get completed in a quarter, typically one grant proposal and finishing one academic paper. But then i look at all my other projects and commitments and get overwhelmed. There seem to be more things there than i can make progress on over a quarter. Yet i can't justify leaving anything off the quarterly plan. And at thispa, i get stuck. Any advice you have on how to get unstuck would be much appreciated.