[meowface]

I see your point, but I think it's only redundant if the context of the use case(s) has already been established, in which case you can just refer to the thing itself (directly, or with demonstrative words). If anything, I think the much more redundant and cringey part is the "personal" in "my personal use case". "My use case" sounds fine to me.

"My use case" just generalizes "my {project, job, task, case}(s)". It's not ambiguous, because the intention is to be general. "For me" is a bit more general than that, though, and sometimes you want to be a little more specific.

The specificity hierarchy / subtle difference in meaning goes from "for me" (my attributes) -> "my use case" (my attributes + the case's attributes) -> "my [job/project/whatever]" -> "my [exact thing I'm specifically doing]". I think all can be valid, depending on the context. I maybe should've said "'case' or 'situation' for a particular project or task or goal done by a particular person (or group or organization)" instead (I was implying the latter part), but there's no contradiction here. By contrast, "moving forward" is typically implied and unnecessary no matter the context and can usually be cut as dead weight.