Went out late this morning and did w5r3. I was kind of surprise to realise during my warmup walk that I was actually looking forward to it. Its true that much of the challenge is actually mental. About 5 minutes in my brain was going "hey isn't it time to walk for a while" but my legs and my joints and my breathing were fine, so I just kept going. I did have a bit of a stitch all the way round. And I need to remember to stick an extra-strong mint in my pocket next time around, as my mouth got very dry, but I did it !
Feeling very good about it right now !