Insomnia after menopause is so difficult ㅜㅜ

I can't believe I used to sleep well in my youth. I never imagined that insomnia would come to me. Since I don't get enough sleep every day, I have a foggy mind all day long and I keep making mistakes at work. I used to have quite good memory, but with age and insomnia, it seems like my memory is deteriorating. I'm worried that dementia might suddenly come one day. Not being able to sleep makes me feel depressed and sad, and I can't stop worrying...