The three things that people are most afraid of are death, other people, and their own minds.
The Buddha said this, "All we are is the result of what we have thought. It is founded on our thought. It is made up of our thought. If a man speaks or acts with an evil thought, pain follows him, as the wheel follows the foot of the ox that draws the carriage.
"All we are is the result of what we have thought. It is founded on our thought. It is made up of our thought. If a man speaks or acts with a pure thought, happiness follows him, like a shadow that never leaves him."
So if we're miserable, what do we do? If we're unhappy or suffering, what do we do? The answer here is clear.