@ OP

I could have just as easily been in your shoes (thought I was until I seen the score!), passing score for my exam was 840 and I had 843. Thats how it goes.

Like you mentioned though, now that you have that testing experience and know what to expect you just need to dig in and hammer on all the topics. Also I didnt see it mentioned, you should be able to subnet in your sleep. A subnetting question should take all of 10-30 seconds to figure out. That will leave a lot of time for other stuff like labs and difficult questions.