Should I go back a week?
I found W4 quite difficult but nonetheless, I managed to finish it! However, I was ill for a week and haven't been to run for that time. I just finished W5R1 and I found it extremely difficult, probably due to my week off and my body recovering from being ill. Should I repeat W4 to build up my fitness again, or should I repeat W5R1 until I'm comfortable with doing it and then move on?