Planning? Perhaps.

Wally Bock on the pros and cons of planning:

It depends on what you mean by planning. If you mean making detailed, projections of 316 key variables by month over the next twelve years, well, you've got too much time on your hands. But if you mean taking a little time to plan your day or week or month so that you work more efficiently, then planning is a good thing indeed.

It depends on how far out you're planning. The general rule is that the further out you go the less accurate you're likely to be.