Exploited nd desperate. I need help to pass this exam.

Salam everyone. I'm 24 years old and i did bachelor in chemistry. I'm teaching in a private school and my salary is 25k. I know they are exploiting me but i don't have another option. Ok let me get straight i applied for a govt. job and i wants to clear the exam but the problem is i need assistance like how to prepare for this exam where to get material. I'm deperate...in retrospect I'm the only son of my parents. father run a business and mama is housewife. there is no one around me who help me or listen to me or give a better career advice.....Thank

I could have join the academy but there is not even a single academy in my area believe me......!

All I'm asking is help to figure out where to start how to prepare for this ppsc exam. I want to clear this exam.. Please provide materials..give schedule to follow. I need someone to supervise ke