Very relatable, Francesca. And by doing both for now you might find ways to merge the two. I did. I was a marketeer and business woman for a long time, but at some point it felt wrong. The world is suffering and I am just doing business. So now I merge the two. I am the writer I always wanted to be, use marketing techniques (without selling my soul) to become successful and help change the world (aligning economy and ecology).
I really think the first important step is to realize what you just wrote about. What is their ambition and what is yours. And then find your own path. Happy writing, Francesca! And happy living!