More (+) on option 1. Go to school. You’ll learn new things, meet new people, experience living in a completely new environment and still have time to build audience.
Also, for now, it is a great idea to do the conference. However, don’t expect money it. Expect an audience building.
Another options: after you go home from working in a multinational company or a startup, you won’t even think about writing, you’ll think about sleep. You’ll write on the weekends, but still… Not enough time.