Dangerous conditions influencing sport injuries include all answers which you've mentioned (overuse, overexertion, and incorrect technique). It doesn't, however, include practicing and drills - d.
Practicing and drills is the thing which would help us become more profficient at a certain task and eventually sport through it.
We can setup a standalone network for a computer Laboratory. The requirements are computers, network cables, switch, softwares and IP addresses. Computer engineers can configure these computers with defined users access and restrictions. We can run only the required applications intended for this purpose. We can also define rules and policy in the computer Lab where we can restrict unnecessary sites.
Thanks but I rather talk to people about depression