If you accept that you are indeed an impostor, the impostor syndrome ends.
If you feel like an impostor, it's because you chose to believe an illusion.
You chose to believe that:
You are truly an expert
You have to have all the answers
You cannot make mistakes
Your role, title, or profession demands perfection
How do you hack it?
By letting go of the illusion and embracing reality.
The reality is that:
You are simply an imperfect and vulnerable human being
You are not an expert because nobody has absolute knowledge
You don't have all the answers and you don't need to
You make a lot of mistakes
Nobody expects you to be perfect
You take yourself much more seriously than the rest of the world (and you are not as important as you think)
Make a decision to start relating to yourself and to the world from the reality of your vulnerable imperfection, not from the illusion of “impostorhood”
Make a decision to free yourself from social and professional pressure, from having to pretend to be perfect, and from your insecurities.
Don't be a victim of your role, title, position, university degree, or any other metric.
Just be a human being and feel how light you become.