You have time to work on it and you could even let her see it, should she be open to that.

I had no warning and had never given one. I was absolutely shocked to my core that my sister wanted me to give hers. She died just a little over a year ago. Car wreck. Terrible shock.

In the end, it was a very good experience. People appreciated it. It gave comfort to focus on a few funny stories. I wrote about it: https://medium.com/minds-without-borders/how-to-write-a-eulogy-8d335bb0ba8c