should i quit jee prep and focus on boards

what should i do?my 11th is fucked .i am in 12th rn,i dont have any time for jan attempt.should i even prepare anymore(even for april) or should i focus on boards...i will write other college entrances so should i prepare mains level or should i forget it and just focus on boards?ik that i wont be able to do well in jan but can i get good scores in april or should i just stop