It seemed like no one answered your question. I must say first I love Buenos Aires, been here for 10 years, but it is not an easy place to live. You might want to try a smaller city like Mendoza or Cordoba, you are much closer to amazing nature but still have cultural options. Mendoza has a lot of expats.
Will you be able to support yourself in Buenos Aires living a lifestyle you find appealing? (shared apartment or one room in a nice area, going out to eat, taking a taxi, traveling a bit). It is hard to find a salaried job that will give you this, especially if you are new to BsAs. Most people who make it here either:
1) have a job that they telecomute to in their home country or are freelancers. For examples, personal coaches, website designers, etc
2) The start a business here (not easy), usually in the tech sector or hospitality center (closed door restaurant, for example) or with a nitch expat market. For example, giving high end hair cuts to expats in their apartment.
I would suggest saving up as much money as you can AND if you can, some sort of work you can do long distance. Spend the first 3 months taking language lessons and emersing yourself in Spanish, even if it means you are lonely because you don´t hang out with expats. After three months, start to look for work, but keep in mind that you will probably not earn more than 30% to 50% of what you need, unless you really hustle. yes, you can teach English but your accent isn´t that desired and it is hard to get enough hours, especially if you have no experience--I HATED teaching English, not that easy really.