To add a brief bit on the theism/atheism - the last entry I wrote in the journal in some ways addresses that. I find the entire alleged binary of "theism" and "atheism" to be utterly useless on so many levels. IMHO, it's worse than utterly useless - it's a red herring, a distraction, a detraction from proper discussions about theology and the gods just in general. A lot of that happened in the English-speaking world because of accidents of history from centuries ago that created something of a cultural hegemony in how we think about both theology and religion. Druidry exists so far outside of that cultural hegemony - it is either explicitly Pagan our in some way countercultural - it does us a disservice to keep ourselves stuck in those ways of thinking.
The big appeal of Druidry for many is that it grounds our experience back in precisely that - the ground. The Earth. And recognizing that relationships with these higher powers (aka, the gods, or whatever you do or don't want to call them) is deeply meaningful because we experience these forces each and every day.