okay this may be really general but what is Nessa's relationship w herself like?
Dude, your questions are always so good!! I've been thinking about this one for a while, but I feel I finally have a satisfactory answer.
In general, she's got a pretty good relationship with herself, but of course, no one's perfect and everyone has things they struggle with. I'd say most of the things she dislikes about herself are things she can't control (physical traits, personality traits, mannerisms, etc) but there are a few things she dislikes that she technically can control, but it's hard.
She's always struggled with her weight. I'd say her body type is very similar to Marilyn Monroe ↓
But with the 90s diet culture and all that, she thinks she's overweight. She puts on weight easily but it's hard for her to lose it, and so that's definitely something she struggles with. I think most of her image issues stem from only knowing one half of her biological parental unit because Barty's a twig (think timothee chalamet's body type). (Side note: I could probably snap that man in half with my thighs.) However, her mom's got a very similar body shape (she's actually got a bit more weight on her than Nessa), so even though their meeting/relationship isn't great, Nessa takes comfort in knowing that she got her body type from somewhere.
She also struggles with her looks. She's absolutely GORGEOUS, but she hates that people stare at her and think she's just a pretty face. Like a lot of women, people don't take her seriously because of her looks, so she hates that she has to work twice as hard to prove herself. She's extremely smart and hates that her looks overshadow that.
She tends to pick at her fingers and nails when she's anxious, often making herself bleed on accident. She plays with her hair, bites her lip, and she prone to acne.
She talks a lot, is very stubborn, doesn't like when things don't go as planned, and gets upset when people go back on her promises.
Although she didn't inherit Barty's mental health issues, she does let that get to her. She feels she's not doing enough to help him and she doesn't think it's fair that he has to deal with all of that while she got off relatively scot free. She finds herself secretly wishing she at least had something so that she doesn't feel so guilty when he's having a bad day.
Besides the "flaws" she thinks she has, she's pretty comfortable with herself. She was raised to stand up for her beliefs, to love herself, to like what she likes and not listen to what anyone else thought, and to be her own person. She's really good at seeing the best in people, even when they can't see it in themselves. She's always willing to help a friend.
She LOVES to bake (my girl's a stress baker, which is convenient because Evan's a stress eater and Barty's never going to say no to a sweet treat). She's a talented artist and musician, she's an excellent quidditch player, and she's witty.
She's also in love with her best friend. They're going to do what Bartylus couldn't do lol
Sorry if this is kind of all over the place. If you want anything specific, let me know!