I noticed that my balance goes

I noticed that my balance goes down pretty quickly. I know its because the Full VPN mode, but that's the only way this works with me because I am using Wifi. So, I wanted to know if there is a way to reduce the consumption amount. Because if I continue at this rate. It will cost me like $15 per month.

Please try to pick one of Public Nodes at Setup - Program - Full VPNThey're provided by https://www.vpngate.net/