how the hell do i change my brake fluid

This Is how I do it, don't know if it the right way but it works.

Sponge out most of the old brake fluid from the master cylinder.
Top up with new fluid.

Then bleed each brake caliper in turn until new fluid comes out.
Remember to check the master cylinder level when bleeding them.

order of bleeding;
1. passenger rear
2. drivers rear
3. passenger front
4. drivers front

see link for full instructions.
http://soarer.ace.net.au/bleeding_flushing.html