When I Was Someone Else: The Incredible True Story of Past Life Connection Kindle Edition by Stéphane Allix. Explores synchronicities, reincarnation, and communication across the veil between life and death. This is a really interesting story.
I think she has not remembered it anymore, if you get the chance you can video her saying important memories so she can recall if she can watch it in the future. oops, am I late for this? Hope it helps.
Welcome to the forum Jupiter 11, thanks for sharing your story. It's quite interesting and regarding your problems, I think you can consult a regression therapist.