Oeganise, organise, organise!
Talk to like-minded people, offline and online. Form affinity groups and friend groups (perhaps one and the same :p), learn information security (everyone should do this), organise mutual aid for things like housing and such (think underground railroad), learn graphic design to produce leaflets, archive vital information, and learn community defense. Don't let the shock tactics prevent you from acting!
It doesnt have to be everything, cooperation allows different people to contribute their own skills, and communities can support each other through the perfectly valid terror to keep surviving and resisting in all the ways.
Good luck!