When I finally am making enough off Ad Astra to hire someone, the first thing I will do is hire a proofreader/editor for my newsletter because the number of typos is frankly embarrassing but I'm also shit at self-editing
You're writing on a deadline. That makes it hard to put it away for a week before reviewing it.
A friend suggested having a text-to-speech program read it out loud to you. It won't catch everything, but you'll be surprised at how your ears will reject what your eyes will ignore.
