trust me, changing the proxy doesnt mess up the school's, my school has a pretty strict block list and it covers the whole district so it has to be a proxy that handles all of the blocking, but setting up your own proxy at home or using one that is not blocked (home is better b/c it is harder to block an IP for the softwar they use) but from there on the proxy send the data through a differnt name (its own) which isnt blocked.