I'm playing "the Campbells are coming" which goes like this:

As I think, it goes like (There is an anacrusis):
| 1 2 3 4 5 6 | 1 2 3 4 5 6 | 1 2 3 4 5 6 | 1 2 3 4 5 6 | 1 2 3 4 5 6 |
| - - - - - c | e g a g e c | e.. e e.. c | e g a g e c | d.. d d.. c |
but my backing rhythm goes like

How should i play it now?