hello ABHISHEK

I hope you are doing good. I would strongly recommend you to never lose hope in life. People do have difficulties in their life but that is the phase of life in which first thing you need to have is self-confidence in life for converting that phase into good one . I have seen many people even starting at the end of 23 years and then cracking the entrance . All you just need to have some 8-9 hourse per day in which you can study with dedicatedly as you said you are weak student so you need to have morehardwork . Start reading THE HINDU for updating with the current awareness and follow a proper roadmap by join some online coaching.

Hope you found this answer helpful. Good luck for your future