Evidence suggests psychoanalytic therapy works best if the client is motivated and has a positive attitude.(Consequences) A depressed client’s apathy, flat emotional state and lack of motivation limit the appropriateness of psychoanalytic therapy for depression.
Note this is not the author of a textbook you have read - but the original source / author(s) of the theory or research study.
For example: As a general rule make sure there is at least one citation (i.e. Don't make the mistake of simply writing everything you know of a particular topic, be selective.
Themes are illustrated and developed through a number of points (supported by evidence).
Choose relevant points only, ones that most reveal the theme or help to make a convincing and interesting argument.
If there is a word count for your essay try to devote 10% of this to your introduction.
Ideally the introduction should; Introductions are very important as first impressions count and they can create a halo effect in the mind of the lecturer grading your essay.
After writing your plan conduct supplementary reading and refine your plan and make it more detailed.
It is tempting to skip these preliminary steps and just write the first draft while reading at the same time.
Remember that an essay is simply a discussion / argument on paper.
Don't make the mistake of writing all the information you know regarding a particular topic.