You specified ocver DMs that this was for Ellie (transfem dog who's a pirate ship's medic), so I'll answer for her.
5. what's your oc birth order in their family and how has that affected them growing up
She's a middle child in a large family, so she's not that used to either being the centre of attention or having expectations placed on her. She's still getting used to the affection and trust she's getting from the rest of the pirate crew.
15. how much pride does your oc take in what they do
She insists she's still new to medicine and not that good at it, despite having done this work independently of her mentor for several years now, but she does wag her tail whenever anyone compliments her on her medical skills.
19. what are the three worst days of your oc entire life
Worst day was when her immediately older cis sister Carrie died of an illness. They were very close, and Carrie had massively supported Ellie when she was first figuring out her gender, so her death hit her like nothing before or since did. Ellie was already learning medicine before this, but this did inspire her to work harder at it.
Second worst day was when she discovered the captain she initially served under was referring to her as a man behind her back. She'd placed a lot of trust in this captain, and did not know who to trust for a while after this.
Third worst day was the first time she got her heart broken as a girl. This was by a guy, and it did lead her to discovering she's a lesbian who just likes it when someone's bigger than her.