The cat ask for a Massage too, but she can't use her Phone to send you a SMS! :)
well this downside spiral do everybody of us experience, some as mere employees , other as self employed, and some lonely "warriors" as peoples which do "Homecare" for near/close relatives.
personally i know for my self i have to cut my self out of the equation, but as your own self reflection says, you will answer with "yes" i will come around for you. i hope for you for a good summer holiday atleast for minimal 2 weeks from wednesday till wdnesday traveling through the whole Finnland and the last 3 days to dip your "soul" in peace and solitude of the daily tasks to regain personal calmness :)

ps: what are you doing with your animals etc. if you would be away for longer than 2-3 weeks ? ( personally i just can bring up a House-sitter on my mind) ^^