My English classes were always excellent for teaching us how to write essays, as was History. Conversely to you, it was Psych that completely failed to educate us on what they were looking for in an essay. I ended up writing mine like an English/History essay for my first one and got marked down for incorrect structure. Just go to the teachers and ask them to [i]show[/i] you an example high-marks essay. Once they produce that, just use the same structure. If they criticise you on it, you can point to the example and say "point out the differences between my structure and the example essay." Boom.