Where are you?
It's ok to still not know where exactly you're heading by & at 30...
The world is ever changing and so are your thoughts, emotions & plans for a "future".
The most important thing, I believe, is that you are comfortable with yourself, where you are & what you're planning to "do next".
That's the "Secret to Happiness", I guess.
Make sure you're in love with where you are, every step of the way & just believe in the process.