Looking for a software to control home Wi-Fi

Hi everybody
how you doing ?

so, tomorrow i have some relatives coming to my home for 15 weeks.
and i know each of them have a smartphone and they heavy internet consumers.
i have an limited internet plan, that's the problem
i want a software to control my wi-fi internet in home
like disabling some sites, putting max amount of data they can get, disabling downloads, disconnect clients whenever i want,etc..

any help and suggestion is appreciated.
thank you