PAPER ATTEMPTING STRATEGY to avoid silly mistakes?

I usually go straight in and end up with 7-8 simple silly mistakes... Last test mein hadd hogai... Easy paper tha ekdam 650 wala phir bhi itni silly mistakes hogai

Ghar aakar dekha toh 601 hogaye

Koi suggestion dedo...topper bolte hai vo paper 2 round mein karte hai pata nahi kaise ho jata hai