newbie lesson learned.
That's the important thing. I doubt any real harm was done.
Finding someone to take care of the chickens is one of my headaches. An outstanding young graduated high school and left for college. That happened twice. A gentleman lost his day job and moved. A friend loved doing it but was afraid of a rooster.
There are ways to set it up so you don't have to feed and water daily. I don't use them but they usually involve large water or feed reservoirs that feed as needed, usually by gravity. But I'd still want someone checking daily just to be sure they are working. What if your water freezes or the reservoir leaks? Or the gravity feeder gets jammed? Some people are comfortable doing that, I'm not.