State election reforms to ranked choice voting have already started some places. Alaska, Hawaii and Maine all use it for some state elections. Some other states use it in some local jurisdictions. Of course, several backwards states have outlawed Ranked Choice altogether. Once it’s used widely enough and been demonstrated to work well, that makes it easier to get it on a ballot at the federal level.
What can you do personally? Advocate for it where relevant, contact your representatives and let them know it’s important to you, and vote for it if given the chance.