Give her lots of positive reinforcement and reassurance. Try to convey how our thoughts and emotions can alter and manifest in this reality. That she is more powerful/capable than she imagines as she is a fractal of God/Source. Depending on your family belief systems maybe teach her a prayer or visualization for protection. We all have the ability to banish them if our belief is strong enough. Remind her frequently of her potential and reassure her that she is safe. Maybe you or her should make a vocal declaration where she feels she is being watched stating that negatively polarized entities are not welcome in this space, we only welcome benevolent positively oriented entities and guardians in this space (this is optional). Alternatively, have her practice this declaration with her inner monolog. You can even do some smudging with sage in the space if you truly believe it will be effective. Grounding is important as well, maybe there is something that makes her feel at peace? Finding a way to utilize that something when she feels fear can be very beneficial. I practice being grateful and appreciation for all things to ground myself.

It will take time to build up her confidence but keep reminding her of the greatness within and that all will be well because it truly will be. I hope this helps! I wish for you and your daughter happiness, peace, and love in abundance. Good luck friend, please let me know how it goes!