Some short free sentences. Please help me!

What is the biggest challenge in your life?
Overcome the sadness and the unorganization.
We feel we can do nothing except making other disappointed and losing the faith in themselves.
People do not support us that make us unconfident.
If we can not overcome them to stand up and do something that we like, the life will be completely nonsense.
Time is a treasure, especially when we are young and in this wonderful time, so we will make used of it well.

This is just a short-line feelings, I have tried to translate them from my own language into English.

TOEFL listening discussions: Which best describes the student’s current activity?

Hi, here are my suggestions