I just scheduled the date. 5 months from tomorrow I will be taking the USMLE step 1. (Unless I decide to change the date.) As much as I don't buy into the whole "one test will determine the rest of your life", this test will significantly impact the rest of my life. One's step 1 score is the most distinguishing characteristic on residency applications. While scoring high doesn't guarantee anything, scoring low will close doors to competitive specialties as well as competitive cities. So if you see me freaking out, or disappearing, over the next 5 months, you now know why.
Side note: My exciting Saturday night plans? Preparing an MPH presentation, completing an abstract proposal, cuddling with my kitty, and maybe watching a bad movie. The joy of being a medical student!