Is there an idea that keeps recurring in different sections?
This could be a theme that you can use to link ideas between paragraphs.
As you write, you may well get new ideas or think about ideas in slightly different ways.
This is fine, but check back to your map or plan to evaluate whether that idea fits well into the plan or the paragraph that you are writing at the time. How does it link to the ideas you have already discussed?
It’s a good idea to start your conclusion with transitional words (e.g.
‘In summary’, ‘To conclude’, ‘In conclusion’, ‘Finally’,) to help you to get the feel of wrapping up what you have said.
Introductions and conclusions are important components of any essay.
They work to book-end the argument made in the body paragraphs by first explaining what points will be made (in the introduction) and then summarizing what points were made (in the conclusion).
Try using linking words (outlined above) to signal to your reader whether you are talking about similar ideas, whether you are comparing and contrasting, and so on.
The direction that your thinking is taking in the essay should be very clear to your reader.