Hi Ayush
I want you to know that there exist no categories of students such as strong or weak. Everyone is unique in their own way. Marks don't take you to the heights of success though it provides you a better career path.
Skills matters. 21 is no age to feel so disappointed in life. Everyone goes through some phase in their lives that can lead to loss of self confidence. Just believe in yourself and don't stop trying.
Other people's judgement should not bother you. If someone makes fun of you, don't take it. The moment you start considering all these factors, you can't step forward for new journey.
If SBI preparation seems impossible to you then do know there are success stories of IAS officers who were below average in their academics but hard work and determination is the key to success. So, try and try till you convert your impossible into possible.
Good luck for your future and start your journey with determination.
Thank you!
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