Here’s a very important tip for my fellow authors. Don’t go cheap with editing your book. Plan your budget to include a reputable editor/proofreader. Don’t try to save money by doing it yourself. You won’t catch everything. In fact, you will be surprised by what you miss. Also, don’t ask family or friends to help.
I once bought a book for authors that emphasis the importance of editing your work. The funny thing is the book was full of typos. Evidently he didn’t practice what he preached.
I would also avoid most people of FivR, or whatever it’s called. I’ve seen proofreader ads with typos in them.
Best thing to do to find help is to ask other authors for recommendations. That’s how I found my proofreader/editor. She did a great job on book 2 (I wish I found her before book 1 went to the publisher) and I’m planning to use her for book 3. And she wasn’t expensive, which surprised me. I got lucky, I guess.
Most importantly of all, have fun with your writing.