Firstly, keep calm! This is your opportunity to have fun exploring your own ideas on paper. When you get the question, try to break it down. For example, if it's a "how far do you agree that..." question, you could compose your answer in 5 parts:1) Introduction: use your plan to write some sentences about what ideas you are going to explore and why.2) Argument 'for' the statement (e.g. I do agree with the statement because... give an example)3) A different argument 'for' the statement (e.g. I do agree for these other reasons, too)4) Argument 'against' the statement (e.g. However... - this is your plot twist moment! Come up with an argument that offers a different point of view; maybe the writer achieves the same effect through a different character / moment. Maybe you think the effect the writer achieves is more powerful than the essay question suggests)5) Conclusion: tie it all together. When you've finished stages 1-4, have a look at your concluding sentence to each point and try to bring them all together in a few sentences for your conclusion. Don't worry, it doesn't have to be very long, you've done all the hard work by this point!