"Bitti" diyorsun, "Bitti lan bitti unuttum." diyorsun. Sonra radyoda bir şarkı, durakta bir siluet, tetikte bir anı ve solunda bir sızıyla irkiliyorsun.
Daha bitmemiş,
anlıyorsun..

Bunu okuyan kişi;
Seni tanımıyorum. Şuan kimle, nerde, ne yapıyorsun bilmiyorum. Ama tek bildiğim; bu dünyada yaşayan diğer herkes gibi canını sıkan bazı şeyler olduğu..
Birincisi; yaşadığın her neyse, o şeyin geçeceğini unutma.
İkincisi de; her zaman değerli olduğunu bil.
Son olarak, şunu da unutma; sen neleri atlatmadın ki?..

My try as learner:

"Bitti" diyorsun, "Bitti lan bitti unuttum." diyorsun. Sonra radyoda bir şarkı, durakta bir siluet, tetikte bir anı ve solunda bir sızıyla irkiliyorsun. 

"It´s finished", you say. "It´s finished, mate, I forgot about it". Then, you are startled by a song in the radio, a silhouette on the stop, a memory while being on guard (not sure about "being on guard" here) and ache in your left (not sure about this part too - maybe it means "ache in your heart" ?)

Daha bitmemiş,
anlıyorsun..

It didn´t finish, you know.

Bunu okuyan kişi;
Seni tanımıyorum. Şuan kimle, nerde, ne yapıyorsun bilmiyorum. Ama tek bildiğim; bu dünyada yaşayan diğer herkes gibi canını sıkan bazı şeyler olduğu.. 

To one reading this.

I don´t know you. I don´t know what, where and with whom you are doing now. But I know one thing - I know that there are a few things which bother you, just like everyone else in this world.

Birincisi; yaşadığın her neyse, o şeyin geçeceğini unutma. 

First; whatever you went through, remember that it will pass.

İkincisi de; her zaman değerli olduğunu bil. 

Second; always know that you are valuable (person).

Son olarak, şunu da unutma; sen neleri atlatmadın ki?..

Finally, don´t forget this either: (really not sure about this part -> ) is there anything that you haven´t overcome yet? (I don´t know how to translate this well, but I think the meaning is: you have overcome many things so far, why shouldn´t you overcome this one?)

"It´s Over" you say, "It´s over and I forgot" you say. Then a song on the radio, someone at the bus station, a memory, and you feel the pain at your left side (in your heart).

"it´s not over" you feel (understand) it..

To the person(To you) who reads this,

I don´t know who you are, I dont know what you are doing, where are you doing it with whom. The only thing I know is there is something you have that makes you feel bad as the other people have.

At first, what ever you lived (experienced), dont forget that, it´s gonna be ok (it will be passed)

Secondly, know that (dont forget that) you are precious.

Lastly, do not forget this too: Did not you get over (faced and solved) many things? (So that this is not even a problem for you)

Gokuyum, Benan - many thanks for your comments and translation!

Perhaps I could somehow give back for your translation - I think that instead of "it will be passed" it should be "it will pass". "To be passed" I think can be used for decisions/legislations, like in "New regulations were passed yesterday". For "bu geçer" I think the correct translation is "It will pass".

Can´t be sure about my English anyway, but at least this is how I think it is Maybe one of English-speaking forum members can help here?