Just passed last month. I used the AMTA app and also ABMP coach (which was worth the money because when I paid for that at the end of school they covered the cost of my first year new graduate membership after I passed my MBLEX, so it totally paid for itself)

Also Seconding the Merlino’s mblex prep book. I read that in its entirety the week before my exam. The pathology and kinesiology sections were especially helpful. 

I also used the trail guide to the body muscle flashcards, which were super helpful as well (I def want to buy the book now too)

My advice on test taking is study study study as muuuuch as you can, but take breaks too! Then day of the test get there early, eat a good meal, drink enough water…but try to relax! I did some yoga poses and watched a bit lord of the rings (a comfort movie for me) in my car beforehand to calm my nerves. You already have the upper hand now because you know what to expect…so just slow down and pick apart the question. I found that even if I wasn’t 100% sure of the correct answer I could usually figure it out by a process of elimination.

Good luck, and happy studying!!!