Chud Gaye bc, pura confidence gaya

It's me again! Pehle post mein science chud jaane ki baat thi, aaj science tha and it was amazing ( second pre board)(paper milne ke baad bolenge amazing), aur aaj mila pre-1 ka maths paper and almost shit my pants! Maanlo B grade milne ke liye jo sabse lowest number hai utna mila hai.

At this point I don't even know what to do cuz pura portion to clear hai, i know how to do sums and literally paper mein HAR EEK question mein half marks katwaya hai, almost had question wrong hai, formulas to correct hai par pura ka pura calculation 📉📉, Parents ka bhi hope chala gaya hai aur mera bhi. Pichle saal I got one of the toppest marks in maths aur iss saal to 60+ aaya hi nahi maths mein.

How tf do I bring 70+? I really do work hard I guess I'm not doing shit right and idk what I have to do Please do help if you understand what I am going through