Thanks for including the form.
So what you've attached is a SharePoint list form. Notice that the schema is locked (locked to the SharePoint list). Its "Main Data Connection" would save the individual items back into the SharePoint list.
It's a bit confusing, though, because the form also has two Form Library submit data connections.
I don't see those two Form Library submit data connections in use in the form, and I don't see the Email data connection in use either.
I guess my question is: what's the scenario and what is the goal? I've seen list forms and email forms and library forms, but seeing all three in one form might be a first for me.