Should I negotiate my severance? after 11 years as a social media manager

My manager said the package is final, but the letter gives me time to review. I am in Boise, in case local advice matters. It includes health coverage for a couple of months. Did anyone negotiate and succeed?

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

An hour with an employment lawyer cost me a small fee and made me feel much safer about signing.