Reads like she's had a very difficult time, it's always difficult to support our children when such horrible things happen to them.
My issue is that DD finds it hard to share her feelings and doesn’t like to talk about things most of the time.
At that age, my kids rarely talked about feelings. Now that they are older, they can discuss how they didn't and still regularly don't understanding their feelings and that blocks discussing them if we attempt to discuss directly. We discuss the impact of their feelings and how it's similar to others instead.
How it would work is a topic would come up, either I and/or their father would talk about it, and then ask their thoughts with space to disagree. Sometimes that worked well, sometimes they'd refer to it as a mumologue/dadologue, rarely thankfully we'd get called patronising, but an understanding was developed that that was not our intent and ways we could avoid it (anything comparing ourselves at their age, even discussing their side more positively than ours, is a no-go for my kids). My kids are autistic, so they get into-dumping, and understand that as a way to show interest that they don't need to reciprocate in the moment.
When my older daughter came out as a lesbian at 11, I said it was possible, gave examples I'd seen that lined up with that, and then discussed sexuality as a trait, how it may change over time, and the value in privacy in places she is not free to leave like school. At 20, she's still undecided between lesbian and bisexual who prefers women, doesn't really care that much on it, does more strongly view herself as demisexual though views that more as a difference in emotional processing / personality type than a sexuality. Even that was less her discussing her feelings, and more it came up in something one of us was watching and she agreed with it. That tends to be how it works -- as adolescents, they don't entirely know themselves, so they're looking at others and seeing what makes sense.
She’s been talking to Chat GPT about this as I found out last night, hence my post, and Chat GPT told her the pride events were child friendly… 😳
It may be good to test out with her things on ChatGPT to show the limits - it gets a lot wrong.