Directions: go along this street, walk down this street and go straight on

[Maw]

Good morning,
I want to ask about (directions).They are confusing me.For example,
(go along this street , walk down this street and go straight on).
I do not know ,sometimes I feel that they are the same.some other times
I feel there is adifference between them.Also,
the difference between (near and next to).
please tell me more about directions.I need to know everything about them.Really they upset me.

[Mister Micawber]

.
'go along this street' , 'walk down this street' and 'go straight on' -- These all have the same meaning.
'Near' is farther away than 'next to'.

If you have other questions about directions, please ask specific ones.
.
_________________
Native English teacher at Mister Micawber's

[Gray]

Here is what I could come up with, please do correct me if I am wrong somewhere --

(showing the direction by hand)
It is a 15 minutes walk. Go this way, cross that bridge, on the first square take a right, on the next square take a right again, then at a minute walk you would find the railway station.
_________________
First lesson - English, not english. I, not i. ~A student of English

[Mister Micawber]

.
It's a 15-minute walk. Go this way, cross that bridge, at the first corner take a right, at the next corner take a right again, then in a minute's walk, you will find the railway station.
.
_________________
Native English teacher at Mister Micawber's

[Gray]

Thank you for the directions

Does it mean 'corner' is interchangeably used for 'square'?

Here, the first thing that comes to mind with 'corner' is -- corner of the room, corner of the alley etc. The word has become so common that we subconsciously use it in our mother tongue.

So, how do natives interpret 'corners'?
_________________
First lesson - English, not english. I, not i. ~A student of English

[Mister Micawber]

.
No; 'square' is incorrect except in isolated cases where the occasional square (= an open area at the meeting of two or more streets) is actually encountered.

A 'corner' is as you suggest, and it is also applied both to the meeting of two city streets and to any of the four physical corners of said intersection.
.
_________________
Native English teacher at Mister Micawber's