How to disassemble and remove lens fungus from inside?

I have a Canon EF-S 18-55mm f/3.5-5.6 IS II which came along with my Canon EOS 650D and has lens fungus internally. I can't really afford to have it getting cleaned by a professional and I am not new to tinkering and disassembling things. The lens fungus affects my shots terribly, making the light all fuzzy and scattered.

I can't seem to find a disassembly guide for the specific lens either, those on youtube are for older models/versions of the lens and I am unsure whether how they disassemble it applies also to what I have.