3. Phil McGraw
Popularly known as Dr. Phil, Phil McGraw was only twelve years old when he and his father who was interning as a psychologist started living in a car in Kansas City.
Apparently his father inspired him to follow the same career path and he went ahead to obtain a master’s in psychology and later a PhD. He eventually joined his father’s practice in Texas. He rose to fame when Oprah invited him to her show in the 90s. He eventually launched his own TV show for advice.