Farmers spend winter fixing tools and planning fields. Your slow months can be your prep months.

A quiet period is not a hole in the year. It is the part where the invisible work happens, and skipping it is why the busy season later goes badly. Nothing visible is produced in winter, which makes it easy to feel useless during it and hard to see that you are building the conditions for everything that follows.

So use the lull rather than resenting it. Fix the thing that annoyed you all last year. Learn the part you have been avoiding. Write down what you want the next busy stretch to look like, while you can still think clearly about it.