Business will help you no matter what you get in to. It's worthwhile, but if you don't care about it, you won't invest yourself in it and really appreciate it.
Sales/marketing takes more natural ability than book teaching in my experience. Here you REALLY have to have a desire for it, or you get burned out quickly and hate your job.
Starting your own business requires some level of knowledge of both, as well as finance/economics, or complementing your team with those knowledgeable/trustworthy where you lack.
So you have figured out what you are currently doing isn't your passion, now figure out what IS your passion. The only reason I was happy with the career I've had is because the day to day job I enjoyed, in all aspects of my career, including current. Explore other venues, talk to friends, see what excites you, then pursue what permits you to be involved in that.
(I've managed multiple businesses, owned a tiny company [short-lived], then worked for others in creative fields, now manage property investments and wear multiple hats, none of which required even my high school diploma, heh.)
The other trick is to find something fulfilling that capitalizes on skills you have in other ways. Also, ask friends what they see you possibly doing other than what you are doing. I encouraged a friend to become a childrens' librarian over a decade ago, she's been enjoying that work ever since. Another friend is in the process of transitioning his career to reselling/auctioning, totally up his alley.
PS: Networking is required/a given in all options, to various degrees, so it's not a separate consideration.