Hehehe … not sure if ‘should’ is the way to go. My advice would be to be sure you can actually make it. That said, sometimes, one has to fake it by necessity when something of significance is on the line.
Example: before I became practiced and confident enough to speak in front of unfamiliar people, I had to fake that confidence outwardly and continually tell myself that I was an authority on whatever it was on which I was presenting. I knew that such times were the “make or break” moments in my career advancement and personal growth, and I was not going to let speaking in front of people stop me from growing.
Absolutely- prove your capabilities, then ‘come out’ when it’s safe. Learn how and when to fake it for times when it isn’t safe. I’ve found myself in a job where I have to present to hundreds of people- it’s still hell each time, but the audience is none the wiser of the trauma I have to go through- I apparently don’t even look or sound nervous! I can only do this through quiet preparation, practice and rehearsal to myself- one thousand times! It’s totally fake, but according to the audience ‘I make it!’.