Hello Abhishek,
We are never late for starting anything new. If you realized that you have wasted your life until now then it doesn't matter anymore. Now what matters is the hard work that you put to get better in your life. With the consistency, hardwork and confidence you can overcome any challenge . So, now buckle yourself and start preparing for the exam.
For the more details regarding the SBI preparation you can go through the link- https://competition.careers360.com/articles/sbi-po-preparation-tips
All the best for your preparation.
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