How could I shift my career from a journalist to a social marketing expert?
Surely there is a huge opportunity for you, and not just restricted to Social Media Marketing but infact you can go for Content marketing as a whole. You will find numerious opportunities into blogging, content management etc.
And in journalism you already have sensitivity towards the content and communication, it won’t be difficult for you to grasp on how & what to publish content online, at the same time you must be having sensitivity towards the communication.
All the best!