Do I even need to take CUET that seriously?

Hi I'm a pcb student and i had initially applied for cuet just as a backup (incase I don't get admission)

I took pcb and English as my subjects in cuet

I already have addmission in the University I wanted to get it in so I don't feel like revising everything again😭 I was just so exhausting, my exams are on 14 and 15 and i still haven't started studying

So like do i really need to study that excessively? I feel like i can get average marks my just revising a little(I'm expecting around 85+ in boards