Bypass sophos web security?

my school uses sophos webs security and i want to bypass this bullshit. I can try getting tor onto a memory stick and that will be a proxy. Proxy websites such as hide my HideMyAss are banned. Only one that works is but it is very slow. Any suggestions for the UKSSR education system?

If this is for school, you will find little help here. That is not your hardware, those are not your systems, you should not be messing with them.