Severance agreement arrived, need a second opinion after 9 years as a janitorial supervisor

My manager said the package is final, but the letter gives me time to review. I would rather hear the honest version than the polite one. I do not want to leave money on the table. What did you ask for?

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.