As someone with a YA protagonist inclination, show this to the YA protagonist: https://deepgreenresistance.net/en/organization/structure/basic-structures-network-types/
It explains the social structures used for political resistance. Deciding on a topology is going to get her a lot farther than creating a cipher. And creating a name is only important in more densely populated areas when you’re looking to take credit for direct action and mutual aid. Everything has a purpose.
Also, creating plausible deniability between a political faction and a militant faction is very useful. The political faction disavows militancy and only communicates with the militants through anonymous side channels and dead drops. You could theoretically install communists in conservative city halls this way.
These are all 5-10 year goals that start with getting to know your neighbors and doing mutual aid now.
There’s also the question of how much someone is willing to sacrifice for rebellion, which is often the difference between someone larping and someone who’s serious and is just inexperienced. I’d also recommend the Boy Boy video on torture where they interview the man who was tortured by the US government. It’s heavy and it really puts into perspective what the enemy is willing to do outside of straight up murder.
I think people need perspective and resources. A lot of noobs are going to need to be fast tracked through the stages of radicalization in the near future.