I think these pictures from a video I recently saw will answer your question. This is how people around you behave when you tell them. The relatives and friends are the worst . maybe not for all, but for 95% of the people. The usual comments you get to hear pull you down. Nobody believes u can do it , until u do it one day and then all these people are like, “humne toh pehle hi kaha tha, karlegi yeh”. To avoid unnecessary pressure and judgements it’s best to prepare in silence and let the success speak.
Senior IAS Officer Vijay Aggarwal emphasised in his book "How to become IAS" that common sense can be bulit by experience and interaction with society elements. This website will share articles like that will subconsciously create common sense in you. Read and Create you awareness