I'm excited for you!
If it's any consolation for your planning/lack of planning, I'm finding people say you don't want to 'overschedule' yourself when you are in Ireland because you might just find a place or a pub or whatever that you want to spend more time doing.
Now, that's causing me (chronic planner) a bit of a challenge because while that sounds lovely, I don't want to leave a place and then find out "you didn't go SEE ________?!?!".
I think I'm just going to think about this way for each area we're staying when we go in June. I'll have a few choices for if it's a glorious sunny day (lol), a few things if it's iffy weather, and at least something to do if it's a washout.
Of course, SOME things require reservations, so I have to figure that out too, lol.