Yazýn çok etkileyici. Sonlara doðru okudukça hüzünlendim.

My attempt.

"Write very forcefully.  Toward the end  reading trully I become meloncholy."

 Your writing is very effective.  When reading it, towards the end I became sad.

My attempt.

Yazýn çok etkileyici. Sonlara doðru okudukça hüzünlendim.

My try:

You write very effectively.

Towards the end I felt sad the more I read it.

Your writing is very effective. Towards the end I felt sad the more I read it.

A mixture of two

Thanks dilliduduk, I can see where my error is in translation, and why LIR was correct.

yazýn = you write (a command) (yaz + suffix for you)

yazýn = your writing (the sentence subject) (yazý + suffix for your)

welcome.

yes , "Yazýn!" also means "Write!" in a formal way (Yaz!, informal). but to mean like "Write very effectively", it should have been "Çok etkileyici yazýn!", order of words change the meaning in this case. What a complicated language

I would rather use impressive instead of effective or touching / moving /  ..

Your writing / essay is very impressive / ..  I became sad towards the end as I (kept reading) read..