Negotiating an offer, is it too late? - any advice?

It is the first offer in 8 months and I do not want to mess it up. I would rather hear the honest version than the polite one. I have a competing interview next week.

I thanked them and said I was excited but hoped we could talk about the pay. They came back with a bit more.

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