Truth has a certain ring to it
Ron Colone wrote an excellent piece on the "effects of deceit and the truth of lies."
I would like to add this to his excellent narrative.
Above all else, "be truthful to oneself," because then you are true to your God, family, friends and country.
Hemingway wrote "when you hear the truth, it has a certain ring to it. When you hear it, you know it."
Abraham Lincoln wrote, "you can fool some of the people some of the time, but not all of the people all of the time."
There are two ways to be fooled - not believing the truth, and believing a lie.
In closing, yes, the world is full of con artists of every stripe, color and size. As my doctor once said to me, "how suggestive are you?"
All I can suggest and write is try and get all of the cold hard facts and keep emotions under control as you make your most informed decisions about what and what not to believe.
By the way, Jesus Christ said "I'm the truth, the light and the way." Something to think about since we all are seeking the truth.