Disclaimer: I know that no one should be forced into anything, and I dont want to force no one.

So since I started Lucid Dreaming, my GF thought it was just BS that I was telling her, she thought that it was something like ghosts or spirits, etc...
After a while I convinced her that it was not, showed her some articles and some scientific proof. So she understood it was nothing made up.

But when I asked her to practice with me, to have a dream journal, to share dreams with me, she just declines the offer and says:
"Dreams are dreams and they should stay there, if I dont remember them, maybe they should not be remembered, even worse, it would make me remember a lot of nightmares"

I tried to convince her that with Lucid Dreaming she would not have nightmares, at least she would not be as afraid of them as she is now.
I even gave her a cool journal so she could use it as a dream journal, but she just uses it for personal notes.

I know that anyone has their own opinion, but I suspect that she is afraid of lucid dreaming because she is afraid of dreaming in general, as she passed a lot of tough times in her life and dreams.

How could I help her?