It doesn't matter how much you earn or need or spend.
The whole point is that you should be able to save at least "one cycle" of money, as a fallback in case the next cycle gets delayed.
So if you live off your dividends, fine, but you should save at least one week of them, to be used in case next week comes later.
That's so obvious and natural I fail to see how can you miss it.
What if you cannot afford to do that? What if your electric bill has to be paid?
If you have exhausted your reserves, you have
already fucked up.
No point in crying about a delayed dividend, you should have acted sooner.
By the way, if you really have such an urgency, you can still sell 1 share, which is definitely worth more than 1 dividend, pay your bills, replenish your reserve, and you'll buy it back when you can.