By this point, I hope you have started your novel and realized that you can write a book. Here are a few final tips.
You need a basic knowledge of grammar, but writing a novel is much different from writing a paper for class. You don’t have to worry about proper or “professional” grammar. Write as you speak. If you were writing an informal letter to a friend would you use a colon? Probably not.
“That” should not be a major part of your story. Can you use “which” instead or eliminate the word all together?
Don’t forget to write as you speak. If you can’t find the words, think of how you would explain/describe the same thing to a friend.
I hope this information has been helpful to you. I wish you happy writing and many sales!