Never ever ever use a real email account to start an account which you use for politics. Use temporary email addresses. There are tons of sites that offer them if you search. So many have been dozed because they registered an account with their usual email.

Use a secure password and use different passwords on each site. Have a password manager.

Throw in some fake info on your posts. Say you live in a different town, make small lies about yourself in order to make it seem less like you.