Lesson #2: the subway can either be your best friend or your worst enemy

every day to get to class i need to leave my residencia and head to the plaza italia stop on the green ("D") subway line. from there i need to somehow squeeeeeeeeeeeeze into the subway and sardine it for about 7 stops to diagonal norte and switch to the blue ("C") line and keep going until the san martin stop. as easy as this sounds, i have somehow managed to mess this up almost every day. i either take the wrong train, or the right train in the wrong direction, or get off at the wrong stop, or simply just get my roads confused while getting off. every day so far i've been late to class by at least 20 minutes.