As I write in Chapter 2 of Screw Work Let's Play, don't wait for some lightning bolt of insight on the the work you'd most like to do. Instead, you can build a picture of where you're heading piece by piece.
Get yourself a nice little notebook and carry it everywhere. This is your playbook. Every time you have a thought about the kind of work you might enjoy, how you could get paid for it, or the people you'd like to collaborate with, write it down - whether you're in bed, on the bus, or in the shower.
As long as you're actively engaged in this inquiry, you'll find a lot of the answers you need unfold naturally.
And make sure the playbook you choose is something that will inspire you - like this blank notebook perhaps: