I decided to go for my third run this week a day earlier than usual, so that the spectre of 20 minutes running without a break didn't haunt me for too long. I also decided as I left the house to vary the route slightly so that I was starting in the opposite direction to usual, so that I didn't pass any of the points where previous milestones had been set. I didn't want to feel discouraged as I passed the 90-second run mark! All of the above paid off, because I completed the run without any problems. The psychological barrier was near the beginning, as I always feel a bit stiff to start with, but once I'd done the first five minutes the rest was reasonably plain sailing.