College schedule has been changed at the last minute. Whoo.
Basically, I was locked out of the required classes when I signed up, and I was required to take one at another campus (which is doable, just inconvenient). So, I dropped that one in order to take another, except I accidentally dropped a different one that was on campus instead. That class filled up by the time I realized my mistake, so I sent off an e-mail to the professor asking about being re-added (since every other class is at either 0, -1, or -2 for remaining slots, a.k.a. over-full). In the meantime, I checked my curriculum requirements and registered for another class that I need (which is going on right now, but I'm not there - going Wednesday).
Basically, I'm at 16 credits again, but I have a class that I need and want to register for, and if I can manage to get in, I'm dropping this other-campus class in favour of it. No potatoes since it's neither good nor bad in total, just a bit stressing.