Answering the Challenge of Plotting for Young Adult (YA)

How much conflict? How intense should the conflict be? Should the conflict only come from elements or situations the young adult character encounters in the external world? What about the world on which the still-dependent character depends? Can that generate a challenge, too?
I found an interesting site with thoughtful information on plotting a young adult novel. This was helpful:

Writers Edit: How To Master Conflict In Young Adult Fiction

What Is Historical Fiction? Answer 1

In the exploration of the ‘what’ and ‘why’ behind historical fiction, and especially young adult (YA) historical novels, here’s a first thought to consider:

“Historical fiction can be used to designate all realistic stories that are set in the past.” (Charlotte Huck’s Children’s Literature, 2007)

Source: Oklahoma State University Library: Historical Fiction for Young People: Home