5by45s 20r - No sleep and a broken car

No training yesterday due to trying to sort out stuff in the house which took me till 8pm – then ended up going to the Dr’s with Lilly at 9pm and walking dogs at 10pm so no sleep last night - well a broken couple of hours - up and dogs walked then tried to start the car - for about 20 to 30 minutes (sorry neighbours) eventually got to work and chopped the 5k warm up down to 4k and had enough time to do 5 by 45 seconds on with 20 seconds rest - felt horrid - supposed to do ten - twice ! gulp