An addiction sister

My sister is addicted to the internet. She loves to read unrealistic stories which are written by unknown people. Unfortunately, she spends most of her time reading these stories which affects on her feelings. For example, sometimes my sister cries, laughs, or feels happily according to the stories' events. One day, my older sister and I discovered that our addicted sister was writing a romantic story. When she knew that we have found her love story she felt shy and started to cut her story's notebook and burned it. In general, she likes to spend a lot of her time sitting in front of the computer without doing any movements unless it is necessary. She spends a round ten hours per a day in front of the computer from the morning till midnight. One day, I was surprised when I woke up at 8 am and saw a light coming from my sister's blanket, so I decided to come closer. Then I was shocked to see her using the internet even on her bed. One day, my family took me from the University when I finished my classes to do some shopping for Al Eid. My addicted sister couldn't remise her laptop even in car. She saved her beloved stories on the laptop, in order to spend her time reading it or watching Korean movies in the car. In my opinion, using and sitting in front of the laptop for long time may lead to some illness, such headache which my sister suffers from it most of the time. I believe that my older sister suffers from net addiction and I would be able to describe her as a netaholic.