Does it make sense for an English speaker to learn a language in a language they're not fluent in?

Pretty much the title. <br><br>I'm an English native speaker, and I know some German. I want to learn Russian, and I know that there are great resources in German for learning Russian, but I'm not that great at German yet. <br><br>Does it make sense to learn Russian from those resources, in German, or would I be better off improving my German first?