extend longer time

Please help me check the following paragraph.

We make up/draw a conclusion:students search out/find their confidence and fulfillment, which they lack in real life, in the virtual reality of cyber world. Besides, online games make them temporarily forget the anxiety in real life. As a result, they extend longer time surfing the Net day by day. After the exploration and study of the phenomenon, we discover that some students who are addicted to surfing the social media cannot distribute their own time on entertainments and studies, and that hinders their schoolwork and interpersonal relationship.