Your replaced the appWord variable... But then left Word.Documents.Add.
Use appWord instead, and also dim a new variable... A document variable.
Dim oDoc As Wird.Document.
Set oDoc = appWord.Documents.Add (Template:= yada yada)
then use that document object variable to run the mail merge. You'll probably need to pass as a parameter. I can't easily give you your code edited back at the moment, since I'm still typing on a phone.
Means yes, we're very helpful-- to someone with a great attitude, like you've brought. So thank you!