Wk1 day 3 under my belt - woo hoo! And I could have done a bit more, which is such a good feeling.
What made it easier (relatively - my legs still ache) was going even slower, and taking shorter paces. I'm pretty sure my brisk walking is about the same pace as my 'running' - but it doesn't matter, as the running takes more effort, and it's effort that makes the difference. I can build up speed, maybe, later.
The only tricky moment was meeting a stray dog just before I started the fifth run - didn't fancy it getting excited and jumping at me, so I walked a bit extra until it went past, and started that one a bit late. I counted paces and added on the extras to make up - but then had a shorter recovery period. But it was fine.
It surprised me how much I was actually looking forward to getting out and moving. So... 90 second runs for Christmas Eve. I'm almost looking forward to that more than Christmas - crazy!