I was born in, and in for nearly six decades. I found when I left it took a while to train my Bull***t Meter to work 100%. I was gullible, uneducated, naive, and ripe for any con-man that came along.
I decided that the best course was to learn Critical Thinking properly, and always, always examine the evidence. Not just look at what evidence is offered, but what evidence is out there for me to find. For and against.
This applies to matters in all walks of life, even simple Store purchases.
One can still be misled or duped, but the likelihood is very reduced by this attitude.
As to beliefs, I do not hold any, belief in the sense of trusting that something is true without satisfactory evidence, the evidence must be copper-bottomed and of a quality that would satisfy a Jury of sceptical experts in whatever field is under scrutiny.
Trusting that something is true based on emotion and no evidence is what got us misled by the JW Borg, never again for me.