I'm not defining truth at all. You are though. It is a highly dogmatic position to be in.
Myth has been used since the dawn to reveal important matters that so called truth consitently fails to do.
A wise man never says they have truth. Only an arrogant and insecure man does.
The best you can say about anything is that "All I know for sure is that I dont know anything about anything important. And knowing that little is far more than I ever knew before".
Try to break away from the system conditioning. And start to observe and have faith only in what you can see in front of your face.
Try to stop believing, what other people, books and propaganda have told you to believe.