She's in Y11. Fairly good student, especially in subjects she enjoys/is good at, nothing unusual there. But with subjects she's not keen on, oh my god she'll bury her head in the sand literally until there's no time left to revise, and then panic, be utterly foul to everyone else in the family, and performs badly in the exam.
If her dad or I suggest she starts revision early, she bites our heads off. We can't suggest anything. She will then cry, refuse to go to school, say she feels depressed... She's not depressed, she's panicking because she's been procrastinating!!
I don't know how to help her get out of this awful vicious circle. Any advice anyone please?