Fat Loss Day 2

Wed 29th July - low carbs day:
fruit and fibre breakfast cerial with blueberries, tea (11am)
coffee, plain low fat yoghurt and raspberries (12.30)
tea and bag salted peanuts(2pm)
chicken breast, brocolli and green beans and gravy (7pm)

HIT:- cyclospeed circuits 1,2,3 - 10.30 pm, 40 mins - went at it hardest ever today!

I'll just make a note of the fat loss plan (shortened version):
day 1 - moderate carbs (none after lunch)
day 2 (Wed) low carbs (none after breakfast)
day 3 (Thur) very low carbs and metabolic booster meal (supposed to be done after another day of v.low carbs)
day 4 (fri) - low carbs (none after brek)
day 5 (Sat) - v low carbs and met booster meal (again, s'posed to be done after another v low carb day).......but got long drive Sat evng, after which will be surrounded by hills to run and bike in..

Question is, is it wise to do the lake session tomorrow as my pre-booster meal HIT? Or would I sink/collapse? It's a bikathlon - little one!