Mistakes are the most valuable part of immersion learning. And it really doesn't work (well, it surely didn't for me), until you accept that mistakes are 50% of the whole process; making them, learning from them, and accepting that you will always make them (unless you're one of those rare gifted people who learns languages easily; I've met a handful in my life -- of course, I hate them for it).There's plenty of previous chats on this forum regarding various tools, methods and apps that you can search for. If you are old school (like me) and don't do well with Youtube videos, apps and virtual things then I would highly highly recommend just going to a community college or any night school and taking some basic spanish 101 courses in person. Learning another language is no fly by night affair and unless you already know a Latin language it will take study and practice. Immersion learning while "adventurous" can be also be extremely frustrating and cost you valuable time with mistakes. Getting the basics down is fundamental to further expanding into the argentine dialect.
The good thing is that you have very little choice, since not many people speak anything but Spanish.
I also suggest reading the newspapers here a couple hours every day. You'll get the Argentine flavor of the language, build vocabulary, and get accustomed to the grammar and idioms, which I still often struggle mightily with. And you'll learn an enormous amount about where you live.
You'll find that when you live here, if you don't stay hidden in the house all day, you'll find a thousand ways to learn the language. It's all around you.