Edit:
I finally decided to move after we beat each other up that night and that morning, slamming doors and banging on walls. Due to the constant lack of sleep, I am losing more and more control over my emotions.
So I have to come up with something before the move. For example, I could spend the night somewhere else more often.
My steadily deteriorating health is the main reason why I've come to this decision. I can no longer live in this flat with its thin walls. All my efforts to get the noise maker to shut up have made things worse.
I hope that I'll feel better in the new flat and that I'll find a new place quickly.
Shortly before leaving work, I went to see my boss for a chat to talk about yesterday's situation. I'm really glad that he made time for me. He thinks my monologue is a bad idea, because the information I give away can be used by my neighbours as a point of attack. He cited my jumpiness as an example. The neighbour might think: "She didn't get scared this time? Then she's usually jumpy. So I could scare her more often now." I hadn't thought of it like that before. I primarily assume the good in people. But maybe I'm too naive in this matter. I think it's better if I don't verbalise my thoughts and fears in my flat any more, as the neighbours simply overhear too much. I could write these things in a diary instead.
Can you actually hear your neighbours doing the dishes? Around 5 o'clock in the morning, I heard the banging of dishes against the edge of the sink and the running of the tap (when he or she runs the tap, I hear a clatter). I asked the neighbour if he/she could postpone washing the dishes until the afternoon. After that, I didn't hear these noises for a while (they started again after about 7 o'clock). My boss said I couldn't forbid the neighbour from washing the dishes - it wasn't forbidden at night. So I guess I have to put up with it. These thin walls are another reason for the move (I'm working on a list of pros and cons to help me make a decision). The woman from the helpline advised me to move (I called the helpline for the first time a few days ago, which took a lot of effort).
As far as sleeping aids are concerned, I have now tried a few things. Melatonin and meditation videos have been more successful for me than the medication my psychiatrist recently prescribed me (Quviviq). I had been taking this medication for 16 days and it had basically done nothing. Two tablets of melatonin with a dose of 2 mg each have a contrary effect. If I get too upset, the effect of melatonin fizzles out and I am wide awake. Listening to bedtime stories or radio plays keeps my brain awake because it wants to follow the plot. I may have more success with non-fiction audio books.
Translated with DeepL.com (free version)