Help! I am addicted to my computer. Is there anything I can do to stop?

Very easy. I would first recommend giving a close person to you to keep hold of your computer till the next day for you. Or you could (this is what I do), set a timer where you can only spend a limited amount of time each day on the computer. Mine is 2 hours. So if I want to use the computer, I would ask myself how long I would like to play now. If I want to play for 30 minutes, I start the timer and then when my time runs out, I close the laptop and knows that I have 1 hour and 30 minutes left today. By knowing that you have a limit, you will tend to do "what you want" in control. Like having a limited amount of money to spend. (In this technique, you could also carry time to the next day. If say, you spend only 1 hour 30 minutes today. Tomorrow you can spend 2 hours and 30 minutes since yesterday you have 30 minute left.) This technique rely on self control. If you have only a limited amount of self control, let your close one keep your laptop for you, don't be afraid to let other help.