Hello Aspirant,
As I can see you have used 'was' in very first line but 'am' is expected there, anyways it will not take much from you to replace 'was' with 'am'. What you have to do is just identify your inner talent because as you have mentioned that your past was dark so learn from the dark past and enjoy your bright future. Any successful person does not think that whether he/she can be at that place where he/she wants to be instead he/she works on his/her dream then only the moment he/she was only able to dream would be achieved. So just believe in yourself and start preparing without thinking of result because whatever the result would be will teach you something and we all knows that "something is far better than nothing".
Now if you want to go for SBI posts then you can either go for SBI PO or SBI Clerk depends upon your eligibility which you can check out from the links given below :-
SBI PO Eligibility Criteria 2020 - Age, Attempts Limits, Qualification (careers360.com)
SBI Clerk Eligibility Criteria 2021 – Age Limit, Qualification & Attempts Limit (careers360.com)
Follow the enlisted preparation tips for SBI posts :-
For more details about SBI PO and SBI Clerk examination you should refer to the link given below :-
SBI PO Exam 2020 Application Form, Dates, Syllabus, Admit Card, Result (careers360.com)
SBI Clerk 2020 Mains Result (Out), Merit List, Score Card (careers360.com)
I hope this information helps you.
Good Luck!!
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