If you get to the polling place to vote and they say your name isn’t on the list, calmly say, “I demand my legal right to cast a provisional ballot.”
If you have already voted, check that your ballot has been received.
Remind others to vote. You can volunteer to drive someone to a polling place, but remember, you can’t talk about who you’re voting for, or try to talk others into voting for your favorite candidates at the polling place.
If every vote didn’t matter, the Republicans wouldn’t be trying so hard to stop us from voting.