Recommended Resources
Books
Writing Irresistible Kidlit by Mary Kole
The Magic Words by Cheryl B. Kline
Save the Cat! by Blake Snyder
Save the Cat! Writes a Novel by Jessica Brody
Structuring Your Novel by K.M. Weiland
Outlining Your Novel by K.M. Weiland
Just a quick note: many of these books have great ideas on how to figure out the structure of your novel, but they also have very specific timelines of when each event is supposed to happen (exactly a quarter of the way into the book, the main character must actively make a choice to leave the status quo, etc). Please know that this is much more flexible than they would lead you to believe!