seni kelimelerie anlatmak o kadar zordur.  cünkü sen herkesin arayipta bulamadigi bu yalan dünyanin tatli insanisin

thanks

 This is my attempt.   I am a student, not a native speaker of Turkish. The phrase "yalan dünya" ıs an ıdıom which I admit I don´t understand well.  I think it tries to add a sort of sweet melancholy to the last phrase.  Maybe a native speaker can help more with this.

"To express words to you is very hard.     Because you are everyone that I can´t call and am unable to be finding in (this lying world?)  you are a  sweet person."

...because you are a sweet person of this liar(or lying) world/life for who everyone looks but can´t find.

arayıp da bulamadığı ...: ... that [someone] searchs but can´t find

yalan dünya or yalancı dünya means this life that has an end, no one has a infinite life. everyone will die someday and/or this life has many things appeared and wished but not all of them can be caught, so it is not that "true", that is what I think about this phrase

edit: not "the sweetest" sory for the mistake

The first sentence:

seni kelimelerie anlatmak o kadar zordur. 

is literally

It is so hard to explain you in words.

i.e.

Words are not enough to describe you.

 Thanks Marion.

so in Plain simple english, its a good message!!!!! Yes??????

I think so... It just says "you are sweet"

thanks everyone

 You are welcome!

 In thıs case my fırst understandıng was correct.  But your confırmatıon ıs always appreciated.