Learning is never-ending. Even if you know quite a bit in the area you are interested or work in, there is still something to learn about it. If classes come available in your area, free or paid, take it. It doesn’t matter how much you know already. Take it. This past Saturday, March 4 (2023), a free class about self-publishing came available through the Willamette Writers at the library here in Oregon, USA. I’m a self-published author and have published my own books three times now. I did that without a class because Amazon provides a wealth of free tutorials and videos to assist an author through that process, so I learned a lot having done that.
This doesn’t any mean I know all there is to know about self-publishing. The online tutorials and videos are great, but participating in a live classroom experience on the subject provides a wider range of information on the subject. I had an opportunity to talk to other authors who are self-published to get an idea of what they do. I enjoyed it, and I still learned more than what I already knew. So, whatever area you are interested in, learn even more about it.