The easiest way to approach this is to "stop burning stuff". Is a material being burned? Then it almost certainly emits CO2. Do you call it fuel? Stop using it or use it as little as possible.

Most personal energy use is for heating living spaces and transportation. EVs are great for transportation, e-bikes are even better. Heat pumps are great for heating and cooling living spaces. Using these one can drastically reduce direct personal CO2 emissions. Sure, you're then buying electricity and part of electricity is produced by burning stuff. If possible, you should then get solar panels, to at least offset the amount of electricity used.

With regard to purchasing one should regard objects that have been over temperature of boiling water as things that took a significat amount of energy to be created: food is cooked, metals and glass are melted, and so on. Is there a way to reuse them, or at least recycle?