I am an engineer (EE). Remember how computers became better every year? Like 2X every 18 months. Or cell phones. The same trend is at work for EV and clean energy. If you buy an EV, you are encouraging investments in batteries and electronics that will soon be both cheaper and better than gas. If you replace your end of life gas heater with a heat pump you will save money. If you support (vote for) investments in clean energy the trend is lower energy costs. Bottom line, your investments in clean energy today will yield a return on investment to your bottom line in your life time. It will save $trillions every decade for future generations.
You can make a big difference just by investing and supporting what is available today.
You don’t need to “believe” in climate change. Just enjoy the benefits of technology eco systems that are continuously improving cost and performance to capture most of the $trillion market for fossil fuels.
As to life style changes, sure try to win over folks. But spend most of your energy telling folks why investments is clean will save them money and offer better and cheaper heating, cooling and transportation.