After posting about my farewells from WordPress, I received two very easy tips that so far allow me to access the old editor.
Here they are, in case they help anyone else.
1) Enter this in your browser, substituting the name the name of your blog.
It will take you to the old-style editor where you can create a post.
Then bookmark that page for future use.
I hope these help somone else. If they carry on working for me, I will be back to blogging soon!