I seriously recommend you'd find someone locally who could give/sell a bit of their sourdough starter :)
Sharing is caring. I've sent some of my sourdough starter to Ireland too!
But no, I don't usually have a specific rhythm. If I want to make sure I'll have freshly baked bread in the morning, I'll split the dough to trays and bake them one by one, leaving the next one to be baked in the morning. This works well with sourdough, but not too well with regular yeast.
@muscara will send some of her sourdough and I hope this will work (means: I hope I do not kill it 😱) I will keep you posted :-D
Don't stress, don't throw it away before you discuss with us on Hive!
And use clean equipment to avoid mold, keep unused sourdough in the fridge, when you feed it a bit you could dry up a back-up.
Good luck. 😅