PEELE Point Evidence Explanation Link Evaluate For 10m do two, for 20m do four with an intro and conclusion and 30m do six with an intro and conclusion.
PEREL is a good structure for the evaluation questions: Point (explain it), Evidence, Response, Evaluation and Link. Try to memorise/use 3-4 points so you have maybe 6-8 in total (for and against) - depends on the time you have for the question. Read top and bottom model answers, pick out the strengths and limitations. Aim to write like the top level answers - examples available on the exam board website (e.g AQA Sociology, assessments, example answers) Learn you content! If you know the knowledge, you'll find the essay writing much easier.
In terms of general structure, I'd recommend PEER for the main body, so point, evidence, expain and relate. Evidence more theoretical, in the explain bit, perhap use practical/real life examples. I know this is very basic but hope it helps.