Cutting off family
I began tutoring a few months back to help a boy's English speaking skills. It went from twice a week, to once a week, and then exchanging one of the original two slots to help their 4-year old and then adding an additional slot for their older brother. The mom is always busy and too exhausted to talk, and I haven't been able to track any progress. I usually help out with whatever the teachers says since I email them directly.
The last-minute changes and late time slots are killing my patience and motivation for tutoring. Their home is chaotic and the 4-year runs into the study area laughing and hiding, and when I give him classes he'll laugh and say "no" to everything and try to smash my materials. I've grown very impatient with him.
Any tips on how to quickly and cleanly tell them I won't tutor any more? They came from a referral from another family, and both families are friends. But I can't take it anymore and conditions will not improve! Even their nanny seems like she is about to break any second.