That's often how my mind feels. Yesterday, I was rushing to finish a draft of a report and I told myself, "Megan, why are you rushing? There's no need to hurry." There may not have been a project deadline, but I did need to hurry because my mind was straining to hold together all of the next-steps and procedures that it needed to perform. If I hadn't rushed to the threshold of the next stage of the project, all the tasks and details would have fallen out of my mind and rolled into thin air - just like the groceries!
My IQ testing showed that I scored below average in the "Working Memory" category. No wonder I have trouble keeping multiple things in mind at once and thus hurry to reach states where I can clear my mental CPU without losing any data.