You wana hack someone with metasploit,ok.
1.Did you try to hack other computer with metasploit in your LAN,or if you dont have other computer you can set up wmware,did you do anything of that?
if you done 1.:then you ready to do it over internet,you need to open a port on your router,its called port forwarding so
victim can connect to you evil genius.Watch some tutorials,when you shure you do it right feel free to send me your evil.exe i will run it and if you did it right you will got your session.