Passion
Life is always changing, always evolving. Many times what was appropriate for us at one time ceases to be in the future. It is time to change.
Again, who do you want to BE now?
Formulate an empowering question and ask it. Like "how can I best serve humanity through aviation?" Behind every question there's an answer trying to reveal itself. Behind every answer there's an action trying to be taken. Behind every action there's a way of life trying to be born.
We're not trying to make something happen while we stay the same, but making something welcome while it transforms us via its manifestation.
The answer to your question is in the question itself.