Hi Chicken. Pop BRCA into the search bar here and you'll find all sorts of info and women in the same position.
Are you and your daughter on Instagram? @mackenziealleman is a young woman in the US who had a preventative double mastectomy and DIEP reconstruction after testing positive to the BRCA gene. She's become quite an advocate in that space if you're interested in having a look.
I'm sorry you're feeling overwhelmed, such a drradful feeling. Take some deep breaths and hang in there. Your daughter is ahead of the ball and we're really lucky in Australia with our health care. Big hug, Kate xox