I spent over a decade, actually 12+ years actively minimising my carbon footprint to microscopic levels because I fell for the lie that it was 'our problem' and not the responsibility of the large corporates who are actually doing the bulk of the damage.
What difference did it make?
Precisely fuck all!
All that time many large corporations flaunted the laws and actually became worse than ever, blaming china and india and other poorer nations for not cooperating is absurd, sorry but it is, the reality is that it is often first world countries companies that are exploiting these countries for cheap labour to make obscene profits and causing the problem anyway.
I still stick to lots of processes and principles developed during that time, but it is pointless while these big players are so utterly cavalier about it all, may as well enjoy yourself...
I don't blame the younger generations not giving a shit about our generation or even themselves... many literally have nothing to live for and no future to look forward to because we took it from them and flat out refuse to do anything about it.