CUET PG economics doubts

I'm from du pursuing BA(Economics+Maths) from DU I'm thinking to give CUET PG 2026 I've a few questions

1. Are three months enough to prepare given that I already have an economics background and most of my concepts are clear? (haven't studied Indian eco yet though) I mostly have to revise the syllabus that I've studied and I went through a PYQ and I could do basic questions
2. How much is the cutoff for DSE? and generally how much does it go for a Supernumerary quota (single girl child)?
3. I'm not thinking to take any coaching, I believe what I've studied so far and youtube is enough, however would like to practise from a mock test series & pyqs. Please suggest