Writer's block? or not?

I'm just over 10,000 words into my new book, and I've hit this wall. With my 1st book, I had no time to think, just write, write, write, and at the end, I put it all together. The 2nd was almost as fast, but I wrote it from beginning to end (almost), and it came together quite well. This 3rd book...there's so much to work out, I don't know where to start, what to leave out, put in, which direction should I go...it looks like it could take a while. Just write a little here, a little there, and watch it grow. After that, step back and see what I've got. So, 3rd book, and 3rd way of writing. Not bad as an experience, but thankfully I don't think I have writer's block...or maybe the first stage, who knows? Maybe I need to try harder. Or relax a little. This is a strange time.