Put all societal and familial expectations aside for a minute and think about what you really want to do, what would make you happy? Knowing yourself well is important and will serve you well in various situations.
When you are looking for a job, for example, it would be ideal to not get stuck with something that you don’t want to do. Knowing yourself would also help you accept other people as they are. It will help you develop an open mind.
One way or the other, the ultimate thing is to do things that are important for you and that make you happy. If you are an introvert, you should regularly spend quality time by yourself. You can also keep your diary if you are uncomfortable sharing your deeper thoughts with other people.