Firstly I'd like to say thanks for all of your comments and advice the other day when I thought I had 'failed' on my first run. Reading through all the responses made me realise that I hadn't failed at all, I had actually won the battle of getting out there and giving it a go. Thank you.
So, feeling spurred on, and armed with my sparkly new Garmin..... I went and had another go at W1R1. Faired better this time. I went out at 9pm....much cooler. Wore actual socks instead of trainer socks which helped with the rubbing ankle. This evening I managed 3x 1min runs. Still going to take a while to get to the finish of it but slow and steady wins the race.