My question deals specifically with this example:
I was extremely excited, so it was hard for me even to grab the doorknob and turn it—I kept on missing and my hand was shaking, you see—but once I finally got that done, I flung the door open and scurried outside.
Should there be a comma after missing so that it looks like the following?
I was extremely excited, so it was hard for me even to grab the doorknob and turn it—I kept on missing, and my hand was shaking, you see—but once I finally got that done, I flung the door open and scurried outside.
Thanks!