Shammi Syera Simin
Mood: The immediate (and temporary) emotions of your character. A feeling of joy after kissing the girl they like; frustration after a busy day working a summer job at the fair; despair after somebody eats the last Oreo.
Situation: The plot and relationship contexts of your character. The apprehension they feel with a friend in the weeks following a nasty fight; the nerves felt in the week leading up to their big championship game; the frustration and boredom of being grounded after crashing the family car into the county creek.
Struggle: The core, deep-felt pain of your character, which often emerges from their background. The fear of failure from overly demanding parents; a deep longing for a family they never knew; a desperate need to be accepted after spending years as an outcast.
How these 3 motives influence your character
The above emotional motives all play an important role in driving your character’s actions, muddying or even overriding their more logical intentions—just as it happens to the rest of us. (We’re all humans, after all.)
That being said, while your character’s mood and situation will shift throughout the story, their struggle will remain constant: their true north, emotionally speaking. This struggle will always be at the root of their actions, even as you swap in new situations and moods.
Take Felisha as an example
Let’s say your character’s name is Felisha, and her struggle is this: a deep fear of failure, stemming from her parents’ impossible academic expectations, which conflicts with her own desire to finally experience the life she sees passing her by.
Her actions, while primarily driven by that struggle, are going to vary quite a bit depending on her situation and mood. For example, if it’s the night before a big test, she might blow off a friend’s invitation to a party so she can study.
But if the party is a week before the big test, and she finds a handwritten invitation in her notebook from Emma (the girl on the lacrosse team she has a crush on), Felisha might act differently. Maybe she feels a lightness and warmth in her cheeks as she reads Emma’s note. Maybe she puts those textbooks away, and maybe, just maybe, she sneaks out the window and goes to the party.
But if Felisha finds the note after her parents just chewed her out for being ungrateful and not studying hard enough? Maybe Bethany doesn’t go to the party. Instead, maybe she reads Emma’s note—trembles—then rips it in two, knowing she can’t disappoint her parents like that. Then she spends the rest of the evening studying. Alone.
Mood. Situation. Struggle.
All three kinds of emotional motives are important. Your character’s struggle is the anchor, but their mood and situation are the ever-shifting masks you use to express their struggle in fresh ways.
And by the end of the story, hopefully your character will overcome their struggle—putting away the textbooks, sneaking out the window, and meeting their crush at a party. Maybe even having their first kiss.
Whatever the character, and whatever their struggle, I’m sure you’ll do great.
Good luck, and good writing!