I do intermittent as well, I eat between noon and 8 PM only. My problem is that I don't do low carbs and what is worse I drink tea 3-4 times a day with no sugar in it, but with candy or some other desert.
And that is after reducing sugar intake by at least half. I think my next milestone would be to cut down on sugar even more and then go after low carb.
But thank you for sharing your routine, it highlights what I am doing wrong and what I should shoot for.