Hello,

It's never too late to start anything, what you need is determination to leave behind the past, and move forth, as you want to prepare for SBI, then get acquainted with paper pattern and syllabus, banking exam is all about speed and precision, hence it's of immense important you go through practice on a regular basis, you have to understand the concepts first, in the recent times the level of question is banking exam have gone up, especially for PO the level of quant and reasoning is similar to management level exams, you can find practice papers from any of the competitive exam sites, those are available freely, when it comes to study materials you can use RK Agarwal's Quantitative Aptitude for Competitive Exam/Arihant Publication's Objective Mathematics or even M Tyra's Quicker Maths. if you're preparing for PO then you can also use books by Arun Sharma for CAT or Sarvesh Verma's as well, for English you can use General English by SP Bakshi, for reasoning you can use MK Pandey's Analytical Reasoning or even RK Agarwal's book of Verbal and Non-verbal reasoning, apply test series before exam this will help you be aware of your areas of strength and weakness,