There are many people that grow up without receiving a high school diploma. Some people have been forced to drop out of high school or for one reason or another, a student cannot go to a high school, but still would wish to receive a diploma. A high school diploma, after all, is about preparing you for what’s to come later in life and can permit you into getting a higher-level of education or even a job.
Write something about yourself. No need to be fancy, just an overview.