I stopped eating meat or flying planes completely. I have accepted that not flying limits my career opportunities. In my home, I electrified heating and cooking. I am saving for an EV but my current car is still doing fine. I hardly use my car, do my daily commute by bike. I go to protests against aviation, against fossil fuels and for the climate. I donate to climate causes. I teach my kids to consider the environment and climate in almost everything we do. I probably forget a lot of other small things, I am extremely climate conscious.
But this is just me. It's like voting. No individual is going to make any difference here. If loads of people do the same, maybe. The real resistance is about taxes, consumption, meat eating, flying. People must be forced to do more or it will only be more expensive later