A broken child - Family phan

Okay, before I explain the story, I just want to say that I live in the UK. We can't drink legally until the age of 5 (but you become of age to drink at the age of 17) and can't have sex legally with consent until the age of 16. Don't ask why I added those in- I just feel like I needed to say it. I also know how the English High School system works. We:
- wear uniforms, not our own clothes
- can't leave school whenever we please
- don't drive until the age of 17
- leave school at the age of 16/17
- start high school at the age of 11/12
- have years instead of grades
- (I'm just not allowed my phone out in school) can't have our phones out during the lesson

Delilah 'Dil' Howell is the eldest child of Dan and Phil. She is two years older than her brother, Dipper 'Wolf' Howell. She has genetic depression from her dad, Dan, but it gets severely bad overtime because of all the bullying in school.

When the fanfic starts, she is at the age of 13 (I'M CURRENTLY 13 AS OF WRITING THIS! I turn 14 next year) and in high school, turning 14 in August and in year 9 (I'm in year 8). She loves her family and is kind, loving, respectful and caring, but at school, life is completely different. She is bad-tempered and always has the tendency of getting into fights. She's rude to teachers, talking back to them at times and she has no respect for any student that treats her badly. She hates school. She wears pants instead of the skirt that all females have to wear, just because she hates skirts and has zero of them at home. Her younger brother, Dipper, is in year 7 and constantly getting bullied. His sister takes the beatings for him, making him feel guilty but she doesn't care. She just wants to see her brother happy.