Writing prompt: Should High School Students Get Online Frequently?

Student essay:
Most of my classmates think that high school students get online can broaden our horizons.We can learn a lot of things on the Internet.We can share our happyness with our friends and chat with them as well.On the other hand,we can play games on the computer for we can relax ourselves.In their opinion,get online can help us a lot.
But in my opinion,computers is bad for us.Our eyes will be more and more bad through we get online.And teenagers can not control theirselves.They always fall in games and chatting.As a result,their energy and time is weasted.
Anyway,the Internet is bad for us.But if we use it in correct ways.Our studies will be better.

Corrected essay:
Most of my classmates think that high school students getting online can broaden our horizons. We can learn a lot of things on the Internet. We can share our happiness with our friends and chat with them as well. On the other hand, we can play games on the computer so we can relax ourselves. In their opinion, getting online can help us a lot.
But in my opinion, computers are bad for us. Our eyes will be worse and worse if we get online. And teenagers can not control themselves. They always fall into games and chatting. As a result, their energy and time are wasted.
Anyway, the Internet is bad for us. But if we use it in correct ways, our studies will be better.