As much as my self-doubt feels real and has a real effect on me, I remember it’s just a product of my asshole of a brain.
Your “lizard” brain is constantly undermining anything related to delayed gratification — the hard work you have to do to succeed — because it comes from a time when the present was the only concern.
You want to know how to find passion? Get good at something. Take your natural talents and strengths and build on them. Competence spurs passion. Passion doesn’t come first.