I want to sue my boss, what should I do?

The first thing to understand before suing your employer, are you working, have you been fired? Once you understand this situation, if you've been fired, you need to go to a lawyer. The lawyer will understand everything that's happened and, if he identifies that there really is a problem with a right that hasn't been paid, he'll file a lawsuit, which will be distributed to a labor court in the city where you live, and then the judge will analyze it. The company will have the opportunity to defend itself and, in the end, the judge will decide whether or not it is owed the right that you believe has not been paid. So this is a labor law procedure.