My English poem ;) Afraid that it might not be so natural. Hoping for correction.

Leaning on the terrace
Feeling the world in silence
The coldness makes loneliness [I would replace "makes with something like "brings forth"]
The lonely feelings make the cold felt in depth deep inside 

A train of thoughts that can't be cut
A pain of parting all drained out [I only added the word "all" here so that it rhythmically matches]
A chaos of memories are littered upmixture of feelings deep down in my heart.

The last line needs a little work: try, "A chaotic mixture of memories and feelings deep down in my heart." Or something like that.

Truly wonderful poem! Rather melancholy, a real chilly feeling, which is what I think you were going for.