Hey,

First of all calm yourself. Don't stress much about your age to be very honest. Many people are more than your age and struggling with the same situation.

Secondly you need to believe in yourself. Don't feel pressured much due to your uncle. Take his hopes in a positive sense and he is thinking for you.

Now as far as the preparation is concerned, try to analyse your weak areas by first giving few kicks. After figuring out your weak areas start preparing accordingly.

Trust me there is no need to study 8-9 hours . Even 3-4 hours of strict study will do .only condition is that you need to be strict with it. Try solving as much question as possible. Even if you score less or in negative don't stop and keep on going.

It's you who need to take this step for you.

Think positive always and you will shine in the exam

Hope that helps.

All the very best.

Thank you