What is your biggest challenge in life?

The life experience that I can learn is when your friend avoids you, when you are at the lowest point, and when you are deemed to be nothing for them. Honestly I've had a very bitter experience once when I was in junior high school. I once dibully when school. At that time I really wanted to quit school and did not want to see my friends anymore. In fact I never ditch with the excuse of illness in order to avoid my friends. They think I'm weird, stupid, and fat. This made me feel myself for 2 years in junior high school. The scorn of friends always came to me. I tried to survive for 2 years in my hard times back then