i feel she's going insane with her dissertation deadline
People have commented on her latest video asking about her hair, or pointing out that she should take better care of it.
I think her intentionally showing her hair looking like a mess today and making a point to mention it is to divert attention from her receding hairline and generally
ducked-up wig. If anyone mentions it now, she'll say, "It just looks like that because I was tyoo busy to wash and brush it haha

"
Better to look like a lazy slob than to look like a malnourished clown, evidently. Of course, if she cut it short, it'd look a lot healthier, but she won't do that because she likes reusing old footage too much.
I'm sure the Oxford photo is also a transparent trick: she's intentionally trying to tease a future at Oxford to give the impression that she's got big opportunities and success on the horizon, when there's no chance she'll get in at this point, and she'd be daft to apply given how thin-skinned she is about rejection.