As for advice, it works. Fake it and eventually, you’ll make it.
I used to hate the saying in its entirety. However, I’ve seen its effectiveness firsthand. I have concluded that the idea is valid, but incorrectly titled.
When “faking it” leads to “making it,” you’re actually not faking anything. You’re figuring it out.
For nearly everything you can learn, doing or practicing the skill is exponentially more effective than reading about or studying its theory.
“Faking it” is actually just deliberate, direct practice. You then transition into “making it” as you experience small wins and develop confidence in your new skills.