> Can you imagine not being able to heat your apartment/home, or your stores being empty because there's no fuel for trucks? Unless you can really picture that and still tell yourself "yup, I really do want that," you shouldn't be excited/confident about what you're proposing.
This seems like an exaggeration. If anything, compare the current CO2 emissions per capita by country to get a better picture of how things would be in reality: https://i.redd.it/mnt8im0yvvd41.png
It'd probably be a shift in your standard of living, for example when going from the situation in the US (16.5 tonnes of CO2 per capita) to the situation in the UK (5.7 tonnes of CO2 per capita). I wouldn't say that the people in the UK have empty stores, but they definitely have a less rampant disregard for the environment while chasing profit margins.
In practice, if you wanted to be more environmentally friendly, you'd drive a hatchback instead of a SUV or would use public transportation, would live in an apartment building instead of having your own house, would eat meat once a week instead of once a day, would have a new phone and computer every 5 years instead of every year, as well as would do all of the other things that responsible people should do, including exercising your rights within a democratic government. That also seems to be working out great for the Scandinavian countries.
But the most important thing - you'd stop having so many kids and would lower your population density, on the path to which most European countries are already on. On an unrelated note, where i live (Latvia), heating my house is a matter of fetching some firewood and lighting the furnace: that way central heating takes care of making the rooms warm for everyone who lives in the house, while i can also use the furnace for making bread or anything else.
Sources for the visualization:
[0] https://www.reddit.com/r/dataisbeautiful/comments/ew2sn7/per_capita_co2_emissions_by_country_oc/
[1] https://www.icos-cp.eu/science-and-impact/global-carbon-budget/2019
[2] https://data.worldbank.org/indicator/SP.POP.TOTL