Good for you. But pot does make a whole bunch of people dumb. Not a bad thing though, thats precisely why I use it!
But yes I get what you are saying. A larger dose can be nice to kind of shut off for a while, and many users do that intentionally. I just want to articulate this distinction, which is that a large dose (varies by user) of marijuana will make a person pretty slow and forgetful. More controlled lower doses of the right strains can actually have helpful uplifting effects.