In the future, click "View Conversation" and post any further VMs there so I can get notifications when you respond.
I am also a university student who used to encounter that problem; do you have a DSi or 3DS and Windows? If so, you can download
Connectify-Me and turn your computer into a hotspot and connect to Wi-Fi that way, the DSi and 3DS are explicitly supported. I use the free trial and it works just fine. If you have a Mac, I hear you can share internet via Airport or something but I'm not familiar with Macs.