"But, you know, you can't be a star at home"

In this quote, Jim Carrey is revealing the concept that achieving success or well-known in one's individual life or within their own household is not the same as being a star in the public eye. He is acknowledging that while one might be enjoyed and admired by their enjoyed ones, it does not necessarily correspond to the level of popularity and acknowledgment that comes with being a star in the entertainment industry. Carrey is highlighting the difference between personal success and public success, and recommending that the latter is typically harder to attain.