The entire idea of fake-it-till-you-make-it is flawed because you are “faking” the result hoping the cause will come into alignment. This is like acting as if your basement isn’t flooded hoping your pipes will miraculously mend.
Please take yourself seriously and release the dreamer. Yes, there is work that follows, but there is work whether you pursue your dream or not. Wouldn’t you and the world at-large be better served if you worked for something more?