Why have I been so afraid of the night and unknown entities lately?

Honestly, I can't sleep most nights because the night scares me so much; I believe unknown entities appear at night. It's 2 AM and I can't sleep 🥺When will I overcome this fear? I've been like this especially for the last 4 months. And to be honest, I noticed my toothbrush was wet around lunchtime today. I asked my family members, and no one had used it. I'd used it at 11 pm last night, and it really needed to dry properly. Why am I so afraid of unknown entities?

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I'm perfectly fine and calm during the day, but I have panic attacks at night. Luckily, I don't sleep alone; I sleep with my sister. Living alone is terrifying for me.
Why have I been so afraid of the night and unknown entities lately?
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