Do not do every paper. Use the Grail to find specific topics. If you suck at "Polynomials" or "Organic Chem - Arenes," search the PDFs for those questions. Cut them out.
The Holy Grail Sgexams is a massive, crowdsourced digital library of past-year examination papers from Singapore’s top schools. It serves as the primary resource for students preparing for major national milestones like the PSLE, O-Levels, and A-Levels. Managed largely by the student community on Reddit, it has become a cultural staple of the Singaporean education system. What Exactly is the Holy Grail? The Holy Grail Sgexams
Includes highly sought-after resources like the "KS Bull" from Raffles Institution (model GP essays). Evolution and Management Do not do every paper
One thing is certain: As long as the Singaporean bell curve exists, students will hunt for the Grail. Cut them out