Weird Self-Inflicted Notes Problem

I made a dumb mistake that has had catastrophic consequences. I opened my Notes up and entered the SELECT ALL command, intending to select all the text in the note I had open. Instead, I selected all the NOTES. I then clicked on the note I wanted to be working with to resolve that, but inadvertently commanded notes to OPEN EVERY NOTE instead. I have thousands of Notes. The app crashed while trying to open all those windows, of course, so I force quit it. But now, also of course, every time I open Notes, it immediately tries to open every note and crashes immediately. I have tried to interrupt the app's processes using Activity Monitor and Terminal, but it looks like the crash is well underway before I can do that. I also restarted the Mac, just in case, but that didn't help either. All my notes are backed up of course, but I use Notes every day for all sorts of random stuff. How can I get the Notes app working again?