I am not telling you any such thing.
I would never bet my soul on my own works; nor is this the teaching of the Catholic Church.
You state your own misconception most vehemently, as if it were a fact. You would do better to ask questions, not make rash generalizations about other people’s beliefs.
Who told you that there was such an imaginary place as purgatory where sins were burned away in fire?
And you believed it was real.