If you are using a shared network then use a vpn and be very careful about banking and any transactions made over it.
I would if I where you and you can afford it get your own internet connection. And change the default admin password and wireless key on your router to one like the following !gY6(/:hS47#}=0.Q but not this one and use a different one for both admin and wireless key.
The safest thing to do on a collage site is to hard connect with a Ethernet cable and disable your wireless and if the router allows to disable external log in.
Peer block only blocks sites so wont really help with people spying on your wireless connection, it's good little program though to block spyware sites.
You might also like these free security toolsWin patrol
stops unwanted changesMVP Hosts
Helps block various nasty'sOpen DNS and DNS crypt,
you download both programs from the site, they prevent some man in the middle attacks by securing and encrypting your DNS.Spyware Blaster
Prevent the installation of spyware and other potentially unwanted softwareKeyscrambler
Prevents key loggingBitDefender Traffic light
Traffic light web safety. Green-safe, orange-be carefull, red-danger Will Robinson danger
Here's the geekstogo free software guide
Forgot to say use a good browser to like IE10 or Chrome
Hope that's been useful
Edited by Niyol, 20 August 2013 - 03:39 AM.