Thanks to everyone who gave good advice after my issues on week 5 run 3, when max heartrate was too high and I was panting and not feeling great at the end.
I slowed it waaaaay down and today was fine - I'd heard people struggled with this session but to be honest it was the easiest due to my much slower pace. I have learnt my lesson - if this slow pace is doing me just as much good building fitness and stamina then great, I have confidence of making it to the end, something I felt would be impossible just 6 weeks ago.
Also, I am listening to a really interesting podcast (on the missing confederacy treasure from the American Civil War!) and I find being absorbed in that makes the time fly by, rather than songs which you know are 4 minutes each.
It is the only time I really have to listen such podcasts so this will be a great routine for after the 9 week course is up.