Term time, self employed and WTC....possible?

I have recently started my own self employed cleaning and ironing business, its going very well, I am claiming WTC and making more than the minimum wage each week, except my first week due to start up costs.

Having seriously struggling to juggle these summer holidays (just about got it covered now), I don't really want to be dreading every school holiday and just passing my children around spending 1 or 2 days a week with them.

As long as its financially viable (I think it will be), by January would I be able to inform WTC that I am now working term time only and would I still get WTC during the school hols? I am prepared to not get it, but thought I would ask.

I wondered if this type of WTC/term time thing was only available to those on contracts i.e. teachers/education/school cleaners etc when the work place isn't open in school holidays.

Any advice would be amazing please. I don't want my children's childhood passing me by in a daze. Once they are in secondary school maybe I could reconsider things. I am hoping to call tax credits on monday to clarify my question, but on previous occassions I have found it difficult to get through.

Many thanks,
Bay