Week 1: I was confident I couldn't run at all - WRONG
Week 5R3: I was confident that there was no way I could run for 20 minutes - WRONG
Week 6: I was confident that I could do anything after running for 20 minutes - WRONG
Week 8: I was confident that the brain gremlins would win and I would give up running - WRONG
Graduation: I was confident that I could move straight on to running intervals and not worry about consolidation -WRONG, WRONG, WRONG
Now (week 10 run 2) I feel that I fully understand the situation: thousands of people have done this programme. Listen to them and do what they say. You will get better at running; you will get fitter; you can do this. But... You will have terrible runs; sometimes you will find your progress is very slow; sometimes your brain will play tricks on you.
So, i'm now ready to put down the miles at my happy pace and slowly improve. I'm also ready to be wrong many more times before I get there.