heaven or paradise ?

i really really want to write about heaven and paradise for a long long time ago
cause i only want to know what is the difference between heaven and paradise .
mostly people will say heaven to imagine something that made you really calm, rest in peace and will never get it from anywhere .
what about paradise?
it is used to imagine about the joyful in the earth such as vegas .
herm ,
and today, i heard one of the girl in this world said paradise to imagine the really really peaceful place . naaah?
for me, paradise is like a place for you to get an enjoyable life in the earth .
playing casino, go clubbing and bla bla bla. .
so which one is correct ?