I have to write an essay about how frankenstein is a cautionary tale in Mary shelley's frankenstein, I want to incorporate something about individuality with the creature but don't know what to write. Thanks

Here's good information on what a cautionary tale includes:
http://en.wikipedia.org/wiki/Cautionary_tale

I don't know that the creature's individuality would be a big part of this, but you might get some additional ideas from here:

http://www.sparknotes.com/lit/frankenstein/
Especially analysis of characters and the themes... section.

http://www.gradesaver.com/classicnotes/titles/frankenstein/

http//www.novelguide.com/frankenstein/index.html

=)