Regardless of if you know what you want to do, don’t know what you want to do, or think you know what to do, ask yourself these questions.
What do I enjoy doing, that fits a need in the market place?
In 5 years, where could I see myself in that field?
It’s absolutely ok to no know definitively what you want to do.
It is not ok, however, to not make an attempt to explore and identify those things.