Alright I live here.
Not to go all Frommer's or Wikipedia (but I guess not today) all over the place, but Andalusia, the region where Sevilla is located, has a heavy Moorish influence. The architecture and appearance in general of everything in Sevilla is obviously incredibly old, but building everywhere just reek of Northern African and Muslim style. I feel so lucky to be in such a beautiful city. I promise that is the only time I will talk about my feelings.
Having only been here for a few days (albeit it feels like weeks), there are many things I understand more clearly and can articulate much better about the city and living norms.
Know that Sevilla's unemployment rate is 30 percent. It may be because there are no jobs, but really, people just don't want to work. Alexis Madrigal offers a pretty technical reason, however when you can play your accordion on the street all day, why work? Pardon my generalizations and harshness.
Take a chance and have a backbone. Or remove the backbone. Tapas in Spain are small dishes for sharing with cerveza (beer). Fish is an extremely popular dish here, I don't think I've ever eaten tuna three days in a row in my life. Order a plate of salad, and expect a plate of iceberg letter with olive oil, sea salt, tomatos and tuna fish. The other day a friend tried some fried anchovies, and you can easily stomach it and remove the cola (tail) and columna (backbone) of the fish.

Relax. Sit and enjoy a cup of café. What I most lack in my life during the normal school year is leisure time. I often find myself finishing multiple tasks at a time and moving onto another set, in the midst of satisfying certain people and trying to get a few hours of sleep. In Spain, however, life is much slower and Sevillanos (people who live in Sevilla) truly enjoy each moment of the day. Though the traffic is a bitch to get home for lunch, it's worth it to sit with your family for three hours and take a break from the normal schedule of the day. The carefree mentality is something I will ease into - without a doubt I look forward to the moment when that actually happens.
Alas, realize you are such a gringa. My Spanish host mom and sister say I speak fantastic Spanish. I have dark hair and eyes and olive skin, but really, walking down the street, I'm just another person from the country that occupies other countries and wastes water and electricity.