Thank you for the great ideas, I'll definitely try to change my schedule & slowly try to quit spending so much time on the computer.Firstly, you can be psychologically addicted to computers and the internet as a few people have already said (I read a study a while ago saying that psychologically the internet can be as addictive as cocaine), but because you are not chemically/physically addicted to it then it shouldn't be as hard to shake.
Secondly, a lot of people probably spend as much time as you on the computer. What is making your eyes tired is the lack of sleep. WHEN YOU SLEEP, YOUR BODY RESTS -- INCLUDING YOUR EYES. Lack of sleep = poorly rested body. If you sit following ergonomic procedures, it shouldn't strain your eyes much at all. It's summer holidays here at the moment, meaning I go to sleep at 11pm and wake up at 10. That's 11 hours of sleep a night. Granted you need not get that much sleep, but try to aim for 9, preferably 10 hours a night. Go to sleep roughly the same time each night, and eat food the same time at daytime to help get your body into a healthy digestive and resting routine.
If you've ever tried to ween yourself of drugs or any sort of addiction, you know that quitting cold turkey isn't the best way to do it. For example, when I was 10 I played PS2 pretty much all day and everyday. I played Canis Canem Edit (Bully) a lot. One night, I started having lucid nightmares about the game. These nightmares continued for weeks. I decided that it was caused by playing the game constantly, and letting it creep into my every thought. So I tried to stop playing PS2 for 1 week to see if I was right, and suffered a pretty nasty psychological withdrawal. After failing miserably to quit, I decided the best way to quit for to slowly ween myself off. It worked, and I barely get nightmares anymore even if that was a long time ago.
Even though you can probably put your eye strain down to sleep deprivation rather than computer addiction, you should still try to ween yourself off technology for a healthier lifestyle. Technology is fun, but you don't want to look back on your life a few years in the future and think about all the time you wasted on the internet when you could have been having fun. Like it or not -- these are the best years of your life. Since I'm a nice guy and I have nothing better to do, here's a few tips on what to do instead of going on the computer. **This is my schedule, yours may be different depending on what time you go to school etc.**
11pm - Sleep (school)
8am - wake up
8 to 8:30am - get ready for school
8:45am - begin school
2:45pm - finish school
3:00pm - arrive home
3 to 3:45pm - ride bike/jog
4 to 5:00pm - study for exams/do home work (more or less time accordingly)
5-6:00pm - talk to friends through social networking OR video gaming
6 to 7pm - eat dinner, shower
7pm - Go on computer/play games
9:30pm - read
10:30 - go to bed
11 to 11:30pm - fall asleep (it usually takes me more than an hour to fall asleep).
Ideas for what to do instead:
- Get a job
- Exercise (cycling, jogging, resistance exercises)
- Hang out with friends
- Take up a hobby (construction, art, cooking, growing plants, reading)
- Get a partner (very important)
The world is full of fun things to do, many of which are free and a lot more worthwhile than sitting on a computer. Go for a walk somewhere. Have sex. Do whatever. I spend less than 4 hours on a computer during school days, and I live an enjoyable and healthy lifestyle. Just go out and find something you enjoy doing and do it.