...of course it is the best to know next to nothing about the language of the country you are going to live in
as for learning Swedish:
there are a couple of the sites on the net telling about the very basics but you won't learn the language just by going through them.
Here's one in English:
http://web.hhs.se/isa/swedish/
Everybody will have to find their own way. I tried in self-study a couple of years ago but gave up on not having really an idea of how to pronounce it.
At the beginning of this year I started again, this time in a Swedish course and while I could learn the words and grammar on my own it is much more fun in a group. For me being German it is often not that difficult to understand written texts since there are a lot of similarities and a lot of unknown words can easily be guessed. I even managed to translate a Vintersorg interview and didn't have to look up
every single word
Choose texts you know at least a bit what's it about and texts that you're interested in.
I haven't clue how many years it will take me to understand someone talking though. And how many decades until I can speak it myself
Only listening to V won't do. From time to time I go through hell listening to the most boring radio programme I could find: P1
Less music, much more talking - which (un)fortunately I don't understand anyway. Phyros laughed his ass of when I told him that.
So much for my random thoughts on this.