Remember that tension, like all techniques, is merely another tool for making your writing more vivid and interesting to read. However, if you do use it, you must make it clear to your readers that the events you are describing have some relation to your study topic. If not, they will be confused, will have to re_read to make sense of it and may end up feeling irritated enough to stop reading.
Once you have produced an essay by going through the steps enumerated above, you can improve it further by going through this last section for added measure. These will help you check for final errors.