I also recommend doing as many informational interviews with people as possible. Generally, people in all professions are willing to share more information about their job, educational background, how they got to where they are, what a day in the life looks like for them, etc. Informational interviews are a great way to learn and also establish a network of contacts across industries.
Finally, as time goes on and you develop more insight about yourself - I would look at four areas and see where they intersect
1. What is your passion
2. What is your unique brilliance
3. What does the world need
4. What can you make a living at