How to review your content
Go to account settings.
The CENL section is how you control the automated newsletters. You can turn off the auto-send feature. When you turn auto send off, the Newsletter will be saved in the "Saved for Later" section.
After the 4th of every month, you can log in and check the Saved for Later list for your newsletter. Then you can open it, review it, and edit the articles according to your needs.
Then send it out on your schedule.