I think too that one thing that's important is to decide beforehand -- what can I do? What would I be willing to do?
That is to say, some people really are willing to be activists. They will organize protests and boycotts and things like that.
Other people are in marginalized communities and are trying to get a feel for whether they should move to a different region or even a different country.
Some folks don't really have a plan but they want to stay informed. If at some point a magical line is crossed, they might suddenly say, "That's IT! I can't take it anymore! I have to DO SOMETHNG!" and that's when they'll become activists.
But some folks are realistically never going to lift a finger to help themselves or anybody else. They'll just bitch online and/or be stressed.
What I'm working on is figuring out in what ways I might, in the right situation, be moved to contribute. If things get really bad (and they will), what will I realistically be doing? I'm disabled, so I can't be out in the streets. If things get even worse, I might write about the niche public health / politics topics I've accidentally become an expert in. And if something happens where medicare and medicaid are shut off, well then all hospitals everywhere will basically be non-functional. This will be a crisis for all but most immediately for the chronically ill -- any of us at that point who are able to will be leaving the country ASAP.
In other words, I need to know enough to keep writing (which I would do anyways) and I need to know when things are hopeless enough that a person with a messed up spine should travel out of the country anyways. That is currently all I need to know because it's all that is actionable for me.
There is a massive temptation to doomscroll into infinity, but that merely serves the enemies of sanity. I know what happens next because I've read Sarah Kendzior and Hannah Arendt. It's not good. But I also know that one of the first things that happened during the anti-semitic purges in Nazi Germany was that a ton of Jews got appendicitis from stress. Sometimes the body wants to align with power so badly, it aligns even with evil power and against its own interests. We have to be very careful not to poison ourselves and make evil's job easier.