hotspot problem on macbook air 2017 catalina

please help! i have no idea what happened but i basically tried connecting my mac to my personal hotspot but somehow it won’t connect to the internet. i tried:

>restarting

>deleting dns

and i tried connecting other phone’s hotspot to my mac and it still won’t work. my ipad connects perfectly fine with my iphone and other devices, so it’s confusing. please give me input on how i should approach this problem...