"Thanks for the response."
Likewise, thanks.
"we only have your word for it that you know completely who you are."
That's the whole conundrum. Whether it's Krishna, Moses, Buddha, Jesus, me, or anyone else, all you will ever have before self-realization are the words of other people. That's why I always say that you should not believe me but test everything what I say.
Although there are many, many ways how to "stick your hand into the fire," I will nevertheless leave a few links here, because all those paths really boil down to a few key concepts / exercises:
https://senderspike.medium.com/the-universal-path-to-liberation-3d19edf1bf5b
https://senderspike.medium.com/the-way-of-torah-1fc65d8a36c9
https://senderspike.medium.com/identity-the-root-of-human-misery-4965699de359
