About 2 year ago, this happen to me. Two girls were going to school in the Sept so I let a FT kids drop to PT (which I never do) because it would be short term and he would come back with his sibling. Then Dad lost job and one other left to move to Ottawa. I thought it not get worse but it did. One kid whose sister went to school, Mom was laid off so younger sibling left too. I had one FT and one PT. Very stressful. No reply to ad, nothing happening. Not even coming out and then picking somewhere else. No interest at all.
It was about 6 month before places started filling up and since then, it's be okay. Have had odd vacancy which took little time to fill but it only been one each time. Now filled place opening up next month as mom is doing shift work and also filled my Sept vacancies.
This business not steady all the time. But it will pick up again.