Actually, your text is very good. Don't worry, you are getting better at English every day, it seems!
There were no mistakes that were serious enough to need correcting.

Well, that is not a bad system at all, in Belarus. Your living situation is the same as people your age have in London.
They usually share a flat with one or two friends.

Only difference is that they usually have one room per person and a living room in addition to that - where they can socialise, watch TV together etc. Like in "Friends"

The prices in Belarus seem low, but I know that salaries are not very high either.
When I was in Minsk I met a couple who had 4 flats that they were letting. I was wondering whether their flats were rented or private flats that they owned - the flats were quite nice inside and located just near the technical university and the language university - you probably know where I mean.

In Stockholm the queue does not work. It is not possible to get flats in central town, unless you wait for 12 years.
The only slight possibility is newly build flats, outside town because the new flats tend to have higher rent which some people in they queue cannot afford.

Today I got super "lucky" and was put forward for a newly built flat - since I was not at work I decided to go to the viewing. It's three rooms and it was on the "wrong" side of town. I decided to take a look anyway since there is a lot of beautiful forests and lakes nearby - good for jogging and going for walks.

But my word, what a depressing area! There was nothing wrong with the building itself, but the area was just so ugly.
The thing that is so frustrating is that I can afford to pay a very high rent - there just aren't any bloody flats!
I am so angry.