Perhaps, it would read better if you replace the word "truth" with "reality".
For example:
Like I said, people create their own truth and even if it isn't the truth to you
Like I said, people create their own reality and even if it isn't the reality to you.
Truth is a mirage, a fallacy
Reality is a mirage, a fallacy
Can we ever find or know the truth?
Can we ever find out or know what is real and what is not?
I have my own truth, millions of people have their own truth concerning a single matter.
I have my own reality, millions of people have their own reality concerning a single matter.
Then which one is the truth? How can there be just one truth?
Then which reality is the true reality? Can there be just one true reality?