Internal monologues are key. The fanfiction could explore his dark thoughts, like his feelings of worthlessness. He might constantly compare himself to others in the Land of Ooo and feel like he doesn't measure up. The author could also show his physical manifestations of depression, such as lack of appetite or always looking tired.
By showing her having mood swings. One moment she could be trying to be positive and the next she's withdrawn. Also, by having her struggle with simple daily tasks. For example, she might have trouble getting out of bed or eating properly.
To portray it realistically, her thought process is key. She could have a lot of negative self - talk, constantly criticizing herself. For example, she might think 'I'm such a failure, I can't even do this simple spell right' when in reality it's just a small mistake. Her relationship with her friends would also be affected. She might push them away, thinking they're better off without her. And she may lose interest in her studies, which was always a big part of her life before. This shows how depression can seep into all aspects of a character's life.
One way to portray Draco's depression realistically could be through his internal monologue. For example, he might constantly have self - deprecating thoughts about his past actions and how they've led him to this state of isolation. He could also show signs of apathy towards things he used to care about, like his family's reputation or his magical studies.
In the fanfic, it's important to show that Maya's depression isn't something that can be easily fixed. It's not just about a few kind words from her friends and she's suddenly okay. There could be setbacks, like she might seem to be getting better for a while but then have a relapse. This ebb and flow is a very real part of dealing with depression and would make the fanfic more believable.
In certain fanfictions, Goku's depression is manifested in his dreams. He could have nightmares about his failures or the destruction he couldn't prevent. These dreams haunt him during his waking hours, making him more withdrawn and less likely to engage in his normal activities.
The author could also explore how Naruto tries to hide his PTSD from others. He's a hero in the Naruto world, and he might feel the need to put on a brave face. But as the fanfiction progresses, his symptoms could start to become more obvious, and the people around him would gradually realize that something is wrong with him.
A realistic portrayal of Harry's schizophrenia in fanfiction would involve showing his struggle with medications (if magic doesn't completely cure it). He might have side effects from potions or spells that are supposed to help him. And his relationship with his teachers and classmates could change. Some might be understanding, while others might be afraid or judgmental. This would add a lot of realism to the story as it reflects how people in the real world often react to mental illness.
Show the sudden and uncontrollable nature of his sleep attacks. For example, he could be in the middle of a conversation with Sasuke and suddenly nod off. Also, include the after - effects like grogginess when he wakes up.
To portray period cramps realistically in fanfiction, the author can describe the physical pain. For example, sharp stabbing pains in the lower abdomen or a dull ache that won't go away.
To portray an 'emotionless Izuku' realistically in fanfiction, focus on his body language. He would likely have a blank stare, minimal facial expressions, and a monotone voice. His actions would be more mechanical, like he's following a set of instructions rather than acting on impulse.