Some people, even believers, have found no greater purpose in life than avoiding discomfort and death. If you are not yet able to declare the knowledge of your God-desired purpose, ask Him to reveal it and set you at accomplishing it. He chose you. He has set you in place on purpose, with purpose (John 15:16; 1 Corinthians 12:18).
Press Him until the very last bit of that purpose has borne the intended impact on the world and eternity. Be awesome!