guys need help

Pure saal nahi padha maine SSt aur hindi me 40/80 aye preboards 1 me jaise taise science math aur eng manage kar raha hun lekin bhai hindi sst kahan se aur kaise padhun kuch samjh nahi a raha sirf economics khtam kari maine aur baki kuch chua bhi nahi hindi me toh aur bhi bura haal hai abhi monday ko pre board 2 ka sst ka hai mai kya karunnn ki atleast 60 toh a hi jaye dono me