I had to talk myself through this one. I am now realizing that I have not been through a TRUE marathon training program before and this is mentally harder than I thought it would be. However, with that said, I believe that these workouts are what is needed come 30k during the marathon.
The first 6k were ok, the second 6k were good, the last 6k were tough. But it is in the bank and I am looking next to the 600m repeats on Thursday.