BRCA gene

I’ve recently completed radiation & have my end of treatment appointment next week. Yesterday I was contacted by my cousin to discuss my opinion of genetic testing for BRCA. My mum died from breast cancer 40 yrs ago & I already have concerns for my daughter. She has been referred to the family history clinic, but now I’ve discovered I have many more relatives with various cancers but because they are on my dad’s side I didn’t think it relevant. My dad was an only son with 5 sisters. All the sisters have/ had cancer. 2 breast, 1 uterine, 1 throat,1 bowel. I also have 2 cousins with breast cancer, 1 recently died and it’s the surviving one who’s contacted me. Her mum was one of the ones who died with breast cancer and she is worried about her daughter, so same position as me. It seems it’s a big deal to have genetic testing as non cancer patients have to have counselling first. Has anyone had experience of this? What questions should I ask at my appointment next week?