Should I negotiate my severance? - 14 weeks in

I was offered 18 weeks of severance after 18 years as an insurance claims processor, and I have a few days to sign. It has been weighing on me all week. I do not want to leave money on the table. Did anyone negotiate and succeed?

Ask for the offer in writing and do not sign on the spot. A day or two to think is normal.

Read the release carefully. Mine included things I did not expect, like a non-compete.