I am the same way about stocking up on stuff and planning ahead of time. I've had to let go of that over the years as well. That was OK with me when we were going with the flow together. Now that we're not, I've slowly gone back to making lists of things to do today, etc. This helps me stay focused and drift less.
WCW, this is the interrupting cow joke: you: knock knock. unsuspecting person: who's there? you: interrupting cow. As the unsuspecting perosn says "Interrupting cow who?" you interrupt them with a big "MOO!"