So I've niched down a bit, from doing a variety of things to doing only one thing. This one thing (book content) was already done on my channel before, so its not entirely new, I do already have an audience for it. But I also have lots of other older videos on completely unrelated topics. Most of them don't get traffic at all and the others don't get much traffic. But would it be beneficial to delete them or at least unlist them? They hold sentimental value, but are they hurting my channel by building up the wrong audience?