Mate,
First of all... Calm Down and breathe. You can do a lot to completely shut this guy off. The most basic thing everyone should have on their computers is a security parameter or a zone defense [:D].
The Security Parameter:
1) ARP Firewall
** http://download.cnet.com/Comodo-Internet-Security/3000-2239_4-10460704.html?tag=mncol;1
2) Anti-Virus
** http://download.cnet.com/Comodo-Internet-Security/3000-2239_4-10460704.html?tag=mncol;1
3) Anti-Spyware
** http://www.filehippo.com/download_ad-aware/
4) VPN for Anonymity
** http://download.cnet.com/hotspot-shield/
5) Common Sense (look for HTTPS:// when going to sites, don't open emails from random monkeys, etc)
Secondly, You need to close all network ports that are dangerous. Do this by doing two things:
(a) Go to: Control Panel\Network and Sharing Center > Select Change adapter settings in the left panel > Right-Click your current internet connection and choose Properties > Disable every item except TCP/IPv4 (Do not disable your firewall or QoS - if you use cable)
(b) You need to close down the ports on your computer so simply download this program and RUN AS ADMIN (Be Sure To Do So)!
** http://en.kioskea.net/download/download-291-windows-worms-doors-cleaner
The world is your oyster young man, take a stand against stupidity! The first line of defense is common sense -- do not read random/spam email, do not go to insecure sites, and do get candy from stranger.
CH33RS!