you should take advantage of this and do alot of revision, so what you've learnt throughout the year settles in slowly, rather then cramming on the last minute, do heaps of practise essays and have your teacher mark it, since you've finished he/she would have nothing better to do then help you improve your writing skills.
essay writing tips (i'm not sure if you've recevied copies of these or not, but these are really useful for other subjects aswell)
be sure when you've given an essay to write, you do it correctly, (eg: if you're told to analyze something, but instead you describe it)
the following are key terms used in essay questions..
Account; Account for: state reasons for, report on. Give an account on: narrate a series of events
Analyse; Identify components and the relationship between them; draw out and relate implications
Apply; Use, utilize, employ in a particular situation
Appreciate; Make a judgement about the value of
Assess; Make a judgement of value, quality, outcomes, results or size
Calculate; Ascertain/Determine from given facts, figures or information
Clarify; Make clear or plain
Classify; Arrange or include in classes/categories
Compare; Show how things are similar or different
Construct; Make; build; put together item or arguments
Contrast; Show how things are different or opposite
Critically (Analysis/Evaluation); Add a degree or level of accuracy depth, knowledge and understanding, logic, questioning, reflecting and quality to (analysis/evaluation)
Deduce; Draw conclusions
Define; State meaning and identify essential qualities
Demonstrate; Show by example
Describe; Provide characteristics and features
Discuss; Identify issues and provide points for and/or against
Distinguish; Recognise or note/indicate as being distinct or different from; to note differences between
Evaluate; Make a judgement based on criteria; determine the value of
Examine; Inquire into
Explain; Relate cause and effect; make the relationships between things evident; provide why and/or how
Extract; Choose relevant and/or appropriate details
Extrapolate; Infer from what is known
Identify; Recognise and name
Interpret; Draw meaning from
Investigate; Plan, inquire into and draw conclusions about
Justify; Support an argument or conclusion
Outline; Sketch in general terms; indicate the main features of
Predict; Suggest what may happen based on available information
Propose; Put forward (for example a point of view, idea, argument, suggestion) for consideration or action
Recall; Present remembered ideas, facts or experiences
Recommend; Provide a series of events
Recount; Retell a series of events
Summarise; Express, concisely, the relevant details
Synthesise; Putting together various elements to make a whole
i cannot stress how important it is to do it correctly, because if you don't do it the way they want you to do it, you won't get all the marks you deserve, even if it's a 6 page essay.
hope it helps, and goodluck.