How much room is there after an offer? - 12 months and counting

I want to negotiate but I am afraid they will withdraw. It has been weighing on me all week. The hiring manager was friendly and open. Did you negotiate?

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

Most employers expect a short conversation. Mine did not even blink.