pfSense Upstream gateway problem

Hi sir,
We have this problem our ISP give us
PUBLIC Static IP: 58.x.x.x this is what we will see if we speed test
then the ISP gave us 124.x.x.x/30 to use in pfSense…
So on our WAN interface we use IP Addr: 124x.x.x and upstream gateway 124.x.x.x , we do have internet connection but I think we the pfsense himself can’t ping the internet… Like we don’t see any available packages for us to download.

Should we use the IP 58.x.x.x as the WAN static IP addr and 124.x.x.x as upstream gateway?