I guess I'm rather hardcore if I've decided to learn the language fairly well in a couple of months, then?

I actually tend to have a very easy time learning languages; I also know some tricks that make everything even easier.

First I make sure to get a good grasp of sounds and grammar, and then I learn the most important words ("I", "you", "yes", "no", "and", "but" etc).
I also make sure to learn the words for objects that surround me in daily life, like houses, beds, trees, lamps and so on; I also learn the most basic verbs, like "walk", "eat", "sleep" etc; oh, and adjectives are good to learn too.
If you know this, then you can create a fair amount of own phrases yourself.
Once you start feeling comfortable with your own phrases, you need to start reading a book in that language; make sure it isn't too tricky, though.
Only read 15 minutes at a time, or else you'll just exhaust your brain.
If you run into a tricky word, which will happen very often in the beginning, look it up in a dictionary.
Then re-read the book again, and then start reading other books as well.