Balancing kids and your purpose?

Hi, I will likely ask this question on a coaching call too but first… here is my circumstance. I have two kids with learning disabilities. They are great kids, but their complicated learning issues mean that there are often surprise issues that come up that need resolution – a new therapist, a new school, a conference with a teacher, doing research on a new diagnosis, etc. When these things happen, I end up having to drop any work I am doing on myself or for myself in order to help my children. How do I balance this kind of an issue with working on and toward my purpose, which, frankly, has nothing to do with my kids? Its been an issue I have struggled with for a long time, as any time I start to make some forward progress, my kids need me for something and then everything else goes on the back burner for a few weeks. Where am I getting caught?

Thanks, Deb.