What is the destination of a Buddhist?

Where should we go for the rest what is the rest ? In mundane life living is so tough , facing sorrow , troubles and need to struggle for achieve something physical things and we get hurt because craving. As I'm doing myself I'm feeling nothing and restless because craving and got nothing after craving and everything is over . So where to focus , what is aim of one Buddhist. I never practice and now I don't understand from where to start, not feeling to start.