The six realms of existence

Lately, i'm finding myself very confused. I don't know whether i'm trying to learn new things to become a better person for myself and the world around me, or am i in fact just a ' hungry ghost' unable to satisfy my hunger. I do feel like i'm constantly searching for something, something which even i do not know what it looks like. So, my question is; How can i tell if my efforts are for good, or that of an insatiable hungry ghost? All help is welcome! Metta