I'm really sorry to hear about your son jp.
This month I've had £250 less to take my kids out with. We had planned trips which I couldn't take them on and it not only makes them sad, but me too (try telling a 5 & 8 year old that you can't take them to alton towers for the day - its heart breaking to see there faces)
But this has nothing to do with your customers. They haven't made promises.
As you are building your round up, you obviously have plenty of time to work. It is a mistake to dump customers when you cannot afford to.
I think introducing existing customers to conditions will alienate them. If you are going to do it, give it to new ones.
And i'm sorry to ask this as i don't mean it harshly, but do you wonder if you might be a bit too severe with customers and they are cancelling in reaction to it. You are still grieving.
The reason i ask is that the quote above is a blame quote. Your kids sadness is your customers fault, etc.
Do they pick up this vibe off you when working?
I hope it doesn't sound too harsh,cos it's not meant to be.
I lost my bro then my mum within a few months, 4 years ago. I was too down to keep work in perspective. But i gave off a bad vibe to some customers who i considered troublesome. It was only when i became happier, did people tell me i was easier to avoid.
Maybe you are doing the same.