I have never defined a "theme" for a following year, I usually just let it go, with no high level planning or written goals; the result is that at each year-end I feel that I did nothing relevant to improve my life.
But I have recently discovered this concept of “year themes” and found it interesting and easy to implement so, after further reflection, I have defined my 2 themes for 2023:
In "Health", I will continue to exercise regularly; I started it 6 months ago and it's really good. And I will also resume my music study, paused due to the pandemics and the economical situation.
In "Revenue", I will focus and dedicated more time, intelligence and planning to my business, to turn it into my major source of income.