I wonder how much of the environmental hopelessness people have on the internet is actually a result of the internet itself eliminating extremely relevant geographical differences. It's easy to get overwhelmed when you feel like literally everything you do - using water, using electricity, eating food - is just a net debit to some global balance of this stuff that everyone is collectively depleting.
But this isn't really how that works.
Whether you personally using electricity is a contributing factor for climate change depends enormously on where you live and how the place you live generates its electricity. I used to live in a place where my electricity came from coal, so I was more concerned then. I now live in a place where my electricity is 100% hydro, so I'm less concerned now. Similarly, if you live in a place like California it makes more sense to pay attention to water use, and if you live in a place like Vancouver you probably should focus on other things.
Focusing on the big picture can be useful when you want to consider large-scale action like voting or protest, but at the day-to-day scale it matters much more sense to look at the needs and risks in your own community. You can't minimize everything at the same time, and trying to do so will only make you uselessly miserable. If you want to change your daily life for the sake of the planet, take the time to figure out what lever you can pull that will make the most difference. Nobody looking at the big picture can tell you that. You need to look local.