What are your other interests? Have you tried pursuing them? There could be a possibility that by personality your interest do not lie in bookish studies but you could be good in application. Can you specify more. Many a times we find that kids have average iq or learning disability but it's never identified and the child continues to perform poorly. Since in our country getting a degree is a must hence work hard this last time and get through your graduation. After which do some professional training in area of your interest.
Next Steps
kindly get and IQ test done.
get a career interest assessment done to find the exact area where you can do well professionally.
Health Tips
think of all activities you love to do you are passionate about.
for all those, see if you have talent, skills or not.
then list out for each what minimum qualifications skillset required
accordingly select and pursue.
do some social work, volunteer yourself to good projects in your area. this will improve your self esteem and sense of responsibility.