Job offer came in! after 15 years as a bookkeeper

After 8 months I accepted a job as a bookkeeper. I am in Boise, in case local advice matters. It is not my dream role, but the pay is fair and the people are kind. What helped you in the first month?

Thanks for writing this out. I went through something close to it last year, and it settled down once I kept a simple log of every call and form.