Try a GUI frontend. I'll be honest, I never even bothered to learn the git CLT in these 10 years I am using it. GitExtensions on Windows and git-cola on Linux are my go-to tools and IMo are more straightforward and intuitive when it comes to interactive rebases from my experience (during some of my C&C modding projects, I've even managed to convert some teammates over to GitExt from GitHub's own GUI tool, because that confused them).