Descartes Arguments for Substance Dualism

The focus of this essay is to explain Descartes discussions and to evaluate them: does he succeed in proving that we are not our brain but instead a nonmaterial substance? Discuss both arguments. Your essay should include, but isnt limited to the following
(i) Explain the method of doubt briefly and what Descartes thinks it reveals about our essential nature.
(ii) Evaluate this argument utilizing doubt for mind and brain being different (see slides).
(iii) Explain the divisibility argument in the quote above and
(iv) evaluate it, does it prove that minds are not same as brains? [Discussion of the problem of interaction is not the topic, so if you wish to mention it, give it only one paragraph.]
I want to follow the instructions that my insturors provided and proper apa reference.