How do you find out what you want? It has been so long since I considered what it is I would want that I have no idea what it that be...?

First of all it has to be between living and dead. If living, then you have to hurry to get it as it may have a deadline or something. If its non-living then you have to hurry as you are not gonna live till eternity. To find 'how', you have to sit between any one of them. while sitting/communicate between the two, any one who gives you satisfaction, happiness is what you want. A stone lying on the road can give you that happiness or not, or be with someone of any age group can give you happiness or not. Just find out between the two first