First take a deep breath...then wait a few months. Decide the basics; do you want higher baseboards, a different trim color, different flooring? Decide on things you wish to change, make a list, then make a plan. Piecemeal decisions create more work...and expense. Example: you want to replace flooring, let's say with an engineered wood. To do so properly, you have to remove all your freshly painted baseboards. Plan the work, work the plan.

Extra White is more neutral than Pure White - so down the line will team more readily with a greater range of other colours. If repainting the trim when repainting the walls isn’t a concern, then choose the one you like best in your space.

I'd stick with your original plan to use a different finish on the trim and walls, but keep all the walls the same white. After you've moved in with your furniture and been there awhile, you may decide to paint one or two rooms a slightly different color for some interest. Unless you have a room like a dining area that you want to highlight now with a slighly different color. It depends on whether or not you have all your furniture or not.

Thanks all! Yes, we have a hallway that I believe has Acadia White on the walls, and there is definitely a cream vibe going on there--one reason I'm a little reluctant to do the walls in the new bath with it against the tile. I had Navajo White on my list to check out, and have added Glacier White too based on looking at the Chroma values, though I think I want to go lighter than the trim vs. darker. (We have Edgecomb Gray in the existing bath and I like it against the tiles we're using, but it's definitely a gray, so need something lighter than that.) The room has a south-facing window with LED lighting (some in a bathroom fan where I don't think we have much control over color, and then wall sconces where we do).