(((hugs)))
Not sure I can help but a couple of ideas.
First I think her first nap is way too early. No matter what time she wakes, I definitely wouldn't do a morning nap before 10am. I'd let it be a short/OT nap, 30 mins at MOST, and then a short A time before her next nap, and let that nap be the long one. We need to get onto one nap: I'd try this nap formation for a week or so, if nothing changes then go cold turkey onto one nap at about 11.30am and hopefully the OT will eventually work in your favour.
The next thing is about independent sleep. Is she going to sleep independently at all right now?
Have you ruled out anything environmental that could be waking her like noises, light, temperature?
She's dealing with a Wonder Week developmental spurt right now too which won't be helping matters.