Halfway or thereabouts, neither here nor there really. A milestone though. One of the goals I've set is to write every day - no matter what. In any given day I do a lot of writing. During the day job a large amount; and then after the day's over I start with "personal" writing, some emails, blogs like this (shooting for weekly content I think will interest you - more on that later), but the focus always is on the real content - the work in progress.
The Bangkok series novels usually clock in around the 80-85K word count, but that's not determined by me - it's determined by the story that needs to be told.
Along with writing, comes reading. I reread what I have written from the first to the latest chapter (Chapter 15); it's good. I only have a little clue as to what happens next. After reading till 3 am last night, I got up a little late at 8:30 am to get ready for my day job activities - but it was worth it - I picked up a bunch of typos and was enjoying the read. I also discovered if I write what I planned to write in the next scenes I will create a timing issue for myself with regards to other scenes I had in mind. Not a bad thing to discover early on but it does raise the need for thinking through the next parts; the cogs have to mesh from the littlest to the largest.
But one of the pitfalls (I've found) in writing is too much thinking - rather than thinking just write. Rather than thoughts, words realized. Words, if you don't write them down, did they ever exist except in the ether?