Ok so apparently I can't stop making ADHD headcannons for tsc characters, but I thought of another one. Clary.
Ok first glance she may not seem like it but (as much as I know people hate me bringing up the show,) I saw it in the tv show especially, with the way Kat played her. And I also kinda saw it in the books too. She's aggressive and impulsive, and you could just attribute that to her being 15 and then 16 but idk.
Also she sort of has lazer focus especially with getting her mom back in the beginning and you could chalk that up to just her loving her mom and being worried. But she kinda approaches things from an obsessive "get it done now, nothing else matters" kind of way.
I don't know who I'm marketing this post to, all the Clary stans hate me because I hate Clace 😂 but whatever.