bro honestly here's my idea.... I am applying for sbi prime against fd of 1.5 lakhs and it is a worthy card if ltf.... For first year I will have to pay 3k plus 540 taxes but then i will get 3k vouchers from shopperstop.... then in may 2025 imma call the sbi customer care service and ask them to either close it or make it ltf.... theres 90 percent chance they will make it ltf... then by next year my cibil will improve and I am 21 years old rn and by next year I will apply for hdfc regalia and if I dont get it then I will take it on fd of 5 lakhs... now my question is if i really wanna improve my cibil score how much should I use my sbi credit card... like will using it less than 1% help me or should I use it less than 10% or 30 %