Take out half
One of the best tricks for effective writing is to say everything that needs to be said, and then go back and take out half of it. Then take out half again, then do it again. Do it again and again until you have one sentence left. Then, finally, you have the essence of what you’re trying to say.
This helps understand an idea more deeply, and make it clearer for others. The shorter it is, the easier it is to understand. It might not be your best draft, but the process is guaranteed to help you understand what you’re trying to get across.