Negotiating an offer, is it too late? after 11 years as a school bus driver

I want to negotiate but I am afraid they will withdraw. I have a competing interview next week. Did it backfire?

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

Thanks for writing this out. I went through something close to it 4 months ago, and it settled down once I kept a simple log of every call and form.