Help with installing and setup stubby through CLI

Guys, please help me with installing and setup stubby on Openwrt 19.07.05 My ISP change own DNS server to Google DNS server (173.XXX.XXX.XXX). I have suspicions that he is leaking the data of his users for money. I need to fully disable ISP dns in router and remove default cloudflare dns servers from stubby config. Then add chosen by me DoT. Can someone share their step-by-step instructions for CLI?

PS: Please do not advise instruction for stubby from openwrt wiki. It doesn't work as it should.