I am really struggling with creating depth to my characters. I have an outline in my head (loose outline) of points they need to get to. I'm fine creating scenes, but my characters feel flat. It may be simply because most are so young at the beginning of the story and they develop their quirks as they age, but even children have depth, and I'm just not sure how to take two school buddies separated by the military and turn them into lovers. I'm not sure how to take a good girl who adores her mother and turn her against said mother even though it must be done for the sake of the story. It is the internal dialogue I need to develop. The why behind the actions. How do we do this effectively? And seamlessly? How do we age characters and have them grow over time? Questions, questions, questions.