Some tips from a librarian for today and the future:
Go to the library. Get a card. Borrow things. Buying books is neat, but the books the fascists want to ban are still there, on the shelf, at your local library, and if they aren't, you can request them. While book bans can happen and are happening in public libraries, the vast majority of "successful" challenges are happening in school libraries. You can still get books from your public library, and getting the books from the library tells your library they should keep them on the shelf. Borrowing anything, walking in the door, and/or attending programs all help get your library more funding. Fighting censorship in this way is effective and costs you $0.
Pay attention to local government. Read your local newspaper, or the local-est paper you can find. (You wanna know who can probably help you read your local paper for free? Your local library.) Look up your representatives in your state and local governments, not just federal. Read their biographies online. Find out what they stand for.
When something divisive is happening in your local community (a book ban, a school board ruling on bathrooms or sports, a change in curriculum), show up. No, literally. Show up to the school board meeting, the library board meeting, the county commission meeting. If you can't show up, make a phone call. If you can't make a phone call, write an email. Your voice has the most effect on the local and state level.
Now, counterintuitively, is a really good time to get to know your neighbors. Do not self isolate out of suspicion. We are stronger together. If you need suggestions for ways to get to know those neighbors, your local library probably has groups you can join, or will start them if you ask nicely and promise to show up. Hand to the gods, a once-monthly book club or gardening club or crochet circle might be your difference between total despair and feeling maybe pretty okay.
Only talk about your personal identities and experiences if you think you will be physically safe doing so. Consider limiting your social media posting. Buy a paper diary. Talk to people in person or via secure direct message if you really want to grow relationships and make an impact. Educating others is great and important. It's also most effective when you have an existing personal relationship with the person involved in the conversation with you. Consider starting new accounts without your face or name if you choose to continue using social media.
Avoid talking about others' personal identities and experiences, particularly without their consent. Your friends, family members, children, and partners are not tools you should use to win an argument. Point to the lives of writers, activists, educators, and artists who are out if you need an illustrative example in a teaching moment with someone you know. Others' religious beliefs, immigration statuses, queer identities, and pregnancy statuses are nobody's fucking business but their own, unless they choose to tell others for their own reasons.