Here's a quote I found a couple of days ago, which seems particularly poignant right now (and from what I've been reading on others' blogs, not just to me):
Because we don’t know what is really important to us, everything seems important. Because everything seems important, we have to do everything. Other people, unfortunately, see us doing everything, so they expect us to do everything. Doing everything keeps us so busy, we don’t have time to think about what is really important to us.