How to bypass my school network to access servers?

My school internet won't let me get on to servers such as League of Legends, Minecraft, etc. One solution to this problem is to buy a proxy such as private tunnel. Unfortunately Private Tunnel has been acting up on me lately and not working too well. Can anyone help me to bypass the network restriction in a cheap (or free) way?

If your going to school you should be studying or working, not playing games.

If you try to circumvent the systems you will be caught and then have to justify your misbehavior. This misbehavior can't be justified and severe consequences will likely be forthcoming and they should be.

Now be a good little child, obey your teachers, parents, and others in authority and stop trying to play like a rebellious and irresponsible little child. Be an adult and do your school work while in and at school. The mind you improve may be your own.

You'd Have to Boot the PC up from an Administrator Account defer the Settings locally only so The Whole system isn't alerted then you can easily bypass. Except getting the administrator account from a teacher or IT person is a little difficult. You can always bribe them. Also on administrator you can use online proxies.

Try the proxy server TOR.

The school, if they have a fairly good IT department, will block all proxies as well. They can detect proxy use.
Only way around this issue is to buy your own wireless cell phone service, and use that 3G/4G for your Internet.