Hi Terri
I say just hop in and try your best and enjoy the process.
As far as stitch in the ditch - does your machine have a serpentine stitch? It looks like an s on it's side. That is the stitch I have been using when I stitch in the ditch with my walking foot. It looks so much better than a straight stitch. Just try and guide it on the line and it looks great every time. I am practicing on my free motion quilting, but that serpentine stitch rocks!