Pick a structure that fits your assignment. Fill the prompts on the left and watch a draft form on the right. Copy it, download it, edit it freely.
Anything you stumble on while reading aloud is something a reader will stumble on too. Rewrite it.
Aim to delete one word in ten on your second pass. The argument almost always gets sharper.
If you can't summarise a paragraph in one sentence, you've packed too much in. Split it.