Negotiating an offer, is it too late?

It is the first offer in 8 months and I do not want to mess it up. I have been trying to stay organised about it. I have a competing interview next week. Did you negotiate?

Thanks for writing this out. I went through something close to it 8 months ago, and it settled down once I kept a simple log of every call and form.

Ask about the range, not a number on its own. It felt more collaborative.