You’re not upsetting me buddy - I was just absolutely exhausted last night.
I would encourage you to try make changes to the code, particularly to text inside quotes. You can always replace it with the code from GitHub and start again.
My plan with the three buttons was to use them as
And with that you could control some things manually. Imagine:
There’s obviously more you can do and that’s down to your/our imagination. But it’s not necessary really so if you want you can remove them from the circuit.
Will the humidity sensor be necessary? I imagine the moisture/dryness of the soil would be enough to determine whether to add water. Will you be able to test this at home for a week or so before installing for your grandmother?