I'm glad that reading a book helped you fall asleep last night (((((Dani))))) I definitely agree with jadedmoonbeam that journaling at night can be helpful. I do that too. I don't tend to write all that much. I just check in with myself briefly by writing some bullet points about how I'm feeling and how my day was and what I'm anxious about. And then I try and leave the things I'm anxious about in the journal (if that makes sense).
Hugs to you