Alright, W4D2 was definitely easier than W4D1. During that first 5 min run in W4D1 I really thought I would need to stop, but a small pace adjustment got me through. On W4D2 it was hard but I felt I could make it and it was not as bad.
Tomorrow I will finish week 4 and I am getting anxious about week 5. It is starting to get to the point where anticipating the end is just ahead will not work as a strategy. The runs have become long enough that the end is not just ahead. I will need to find a new mindset.
Also, big learning for me. I did weeks 1-3 on a treadmill and would walk at 2.5mi/hr and run at 6mi/hr (10 min miles) with the idea that I should establish a firm pace to reach the goal of a 30 min 5k. That is not the best plan I have discovered. As the runs get tougher, you need to be able to easily (guilt free) adjust your pace. Pace can be worked on once I run the whole distance, but first I need to get to running the whole distance. From now on I will do as much as possible outside away from the treadmill.