Other people have done it. So your telling me that they only did it by knowing someone? you knew someone?
No, that's not what I'm telling you. I make my money from outside the country. I didn't have to know someone here to get ahead. And when I came here, I came to employ people here for software development projects outside the country because when I came, I saw the lack of opportunities and knew I could take that lack and use it to create a win-win situation for both me and the people I employed. Things were a lot different in 2006 than they are now and probably will be for a few years to come.
The non-Mercosur expats I know come in four categories: Retired, independently wealthy, earn their money outside the country, or are trying to make a living here. The first three categories of people are relatively happy while the latter category are dwindling fast and those that remain are not terribly happy and thinking about leaving - because they can't find very many opportunities.
I know three guys who have started a bar here, and expanded into two bars and are looking at more expansion - but they are taking advantage of a niche here. Young Argentinos love to party and get drunk and my friends in this endeavor have managed to do a better job of it than anyone else. they are the only ones I know who are successful and happy as well. but even they have their problems. And they were very lucky, two of them anyway - they started out under the tutelage of a rich expat and were very fortunate to take over from him and improve what the original expat had already started. Even as it is, they have to deal with a ton of crap from the government on an almost daily basis (they are a bit too successful) and pay quite a bit in bribes to various officials to remain in business.
If you can find something that makes so much money you can more-or-less forget the other crap, you'd be in good shape. but I've watched other expats try to do things like start up a business and fail miserably after losing a lot of money.
Most of my wife's brothers and sisters have come here from Paraguay. They started coming about 4 years ago, but the majority came 2-3 years ago (she has 12 brothers and sisters). I warned them when they came that their plan to come here, work their asses off, and return to their country with enough money to start a business was not going to turn out the way they figured. I saw the writing on the wall a couple of years ago, what was coming, but they came anyway and now can barely keep their heads above water, much less think about returning with money for a new business. The only kind of opportunities they have for the most part are working 12 hours a day, 6 days a week, and a lot of Sundays half days at hard labor and living in places that are not very good.
I know Argentinos who are successful. But they went to good private schools and are connected between their classmates (a bond which means a lot here and continues for years into the future, quite often). and received good opportunities as a result. I know Argentinos who didn't grow up so lucky to grow up with such good contacts and have left their country in search of opportunity.
So, you said you were depressed because of a lack of opportunities where you come from. My opinion stands - if you are coming here looking for other opportunities you may be disappointed and there are other places that have more opportunities. Just my two cents' worth of advice and probably worth about that much.
Maybe there are more opportunities here than where you are from, but if so, I guarantee that that isn't saying too much. Maybe you will be happy with the struggle to get anywhere here with the weight of bad government, bad economy and a general attitude here that doesn't lend itself toward people who work hard advancing. Personally, if it wasn't for other external factors I'd be living in Paraguay, most likely Asuncion, where hard work is better valued and even with a little bit of money you can turn a small investment into something without so much crap on top of you.
You have to make that decision yourself. I'm not saying you can't make it here, but coming here depressed, looking for something that had you depressed in your home country, may not be the way to approach it. At the very least I think Cevishe's explanation of how and why he chose to come here bears some scrutiny on your part.
As I said, through experience mind you, coming here as a tourist and enjoying the partying environment is a completely different thing than coming here to stay and get ahead in life. Good luck to you.