But a lot of that is not unique traits, when I watched the show all in one go, Yang seemed really pointless to me. her fun-loving attitude was shared by Ruby herself. and her backstory could also be somewhat shared with Ruby as well.
Yang just seemed like a older version of Ruby, not so much her own character. Sure she had her stand-out moments, but I dunno, she just did not seem as distinct to me.
As for her going forward, I don't think they need to make her super edgy, but she needs to have some growth, she needs to be in that pit of despair long enough that she can come out as a changed and wiser person.
I dunno, she just seems due for some major changes.