Keep learning about witnesses and voting for some more. You can do up to 30 votes.
This is not a response for you to vote for me. I genuinely think people should vote more often. And if they don't know for whom to vote, that should be a sign they need to go check what witnesses do... and then vote accordingly.
That's what protects the chain. And don't think about having little power and not being "worth" voting. ANY vote is worth... and what that shows as well is that people care for the chain.
Does not cost anything to anyone, and is a really good way to self-grow in this platform, because one will generally learn more about the chain and the technology around it.