Do you know much about marketing?
Have you ever studied marketing>
I have not, but have some work experience. 
Work experience is important for everyone, even if you don't have a degree.
that is true. It is increasingly becoming almost most MORE valuable than a degree.
Studying marketing involves learning about the management of exchange relationships. It can be quite hard.
It sounds challenging? Have you studied it before
I have, the concept of value-based marketing is amazing. You should check it out.