VPN for internet sharing

I am subscribed to a monthly load that gives me unli data for internet connection. I want my devices at home to be able to use that load even when I’m away. I’ve come across ideas that uses a vpn server on the phone that has the load to share internet connection to devices that connects to that vpn server. Does anyone know how to achieve that? I’m really not that familiar in using vpn.

What the heck is a “monthly load”

I guess it’s not that common to your country or something, but it’s a load subscription. Basically my phone number or my Sim is subscribed to a load promo that lets me have internet connection and I have to pay for it monthly. I hope that answered your question.

Do you mean monthly data? Like 5gb per month?

No, it’s an unli-data for one month subscription. I basically pay 600 php for unli internet connection.

You didn’t get my point