"Ne yapsam, ne söylesem ?" literally means "What am I to do, what am I to say?"

As an expression, it is used in a situation where nothing you can do or say will help to solve the existing problem. It ıs an expression of being helpless, failing to do or say anything to solve the problem.

what about "yapsan" just yapsan itself, what does it mean? and thanks for explaining ne yapsam and ne soylesem, i had a trouble understanding them before.

 YAPSAN may mean,

"I wish you would do it" or "better if you would do it"......in loose translation.