The Bible is such a rich combination of narratives and literature, and I've reached the same conclusions as you about a general difference between old and new testaments. I think the new testament is, besides Revelation, attempting to record a historical chain of events which I choose to accept as a more or less real account including miracles, whereas the purposes and voices of the old testament are much more varied and complicated. There's poetry and social instruction and lineages and history and theology. And of course in many places they're likely blended together. But since the messages that I find interesting are the more literary and philosophical books I primarily focus on those and the new testament.

But most miracles aren't in that category.

On the one hand - the sacrifice of Jesus Christ and what that means for us is a core tenet of my Christianity, as is the idea that humans can literally commune with God - so dropping those would be impossible. But for the rest - what is important is more what you can learn from the stories not what literally happened.

Bryant