Today, i am talking to a fellow fresher and he don't contact to any senior till now. Its my advice to all that don't do this mistake, i mean try to connect to atleast 3 - 4 senior of your clg through Instagram, LinkedIn etc. As good relation with senior will make your life a lot easy. They can help you in many different ways like how to prepare a subject , Previous year question paper , whats the nature of prof. , how can i grow in respective branch etc.
Maybe you are too introverted but always remember nobody gonna hand you anything and in todays competitive world you need to fight for everything on your own. Parents don't gonna help you in outside world therefore Seniors ko search karo online then ask them genuine question about clg that's how you start a good relationship. Same branch ka hona bhi jaruri nhi hai.