Appear in '18 with the same subject combination. I am not sure but I have a gut feeling that all subjects targeted this year would prove scoring in 2018. Well, you can never be sure. They might not be scoring since it's all too unpredictable.

Pull up your socks. Burn the midnight oil. Give your best shot. And your Lord shall do what is best for you! Never let any fear conquer you. To be honest, there shouldn't be any fear in the very first place since essay/precis and scoring trend are unpredictable. They don't judge your competence. Just leave no stone unturned from your side so that you don't have any regrets.