If you do really really good work and really care, it is impossible to replace you.
No matter what you do or where you are.
You could be a street cleaner.
Or a CEO.
Or a tennis player.
Or a corporate employee.
It is almost impossible to bring someone exactly like you.
Think of Sachin Tendulkar. Or Roger Federer. Or Shah Rukh Khan.
They all are the hallmarks of their industries. There may be and there are better cricketers, tennis players and actors than all of them. However, that does not deny the fact that the best was and still is the best.
Be that best one, for whatever you choose.
It may not be the easiest journey, my friend. But I promise it is going to be worth it. Because you showed up to be yourself in a world where everyone wants to be like “that one who does not do any work and still gets through.”