How long before I die?

"How long will I live?" or "what is my expiry date?" or "is there any way I can know my expiry date?" these questions always haunt the minds of us Human beings. It is not that we are all afraid of death cause we all know that since we were born, we all need to die too. But when?
The answer to these questions cannot be given by anybody. Then why do we need this information in the first place? It is quite evident that if we knew exactly the date when death would come to us, we could have taken proper steps and completed our tasks and expired in a much contented manner. It is like when we know the expiry date of the medicines, we know exactly within what period of time, it has to be taken, and if it crosses the expiry date we should not take it at all.
Here the discussion is not about when we are going to die and is there any method of finding out at least approximately. When I was doing Reiki self practice, i put up this question to the wondeful kind power, Reiki, and I got an intuition about this.
As a human being grows in age and structure, he also grows in experience. He interacts with many people in his life time and keeps on getting buquettes and brickbacks and there comes a time, when he utters these very words - "aadhi jindigi to kat gayi, baki aadhi bhi guzar jaye to achcha hai." So Reiki asked me to meditate on my past years, as to when I had said these to anybody or even to myself. I did just that and during the prctice, I came up with the result that I had said these words when I was about 34-35 years old. It was not out of frustration at that time, cause I was having nice job, I was married and also had a cute lieele daughter and was happy. But I clearly remembered during the Reiki past life meditation that I did say that.
So shall we say that I was given an indication at the age of 34-35 that half my life was over and my total life could be anything 68-70 years? It is a question that now bothers me.
I may be wrong or I may have stumbled upon the correct answer. For after that I have many people utter exactly the same words. though I have not been able to keep a track of them or their lives, it somehow seems true.
Anybody willing to try out this method?
Just meditate and try to locate at what age did you say these words or maybe you did not till now !!! good for you hai na???