What are the Labor Laws in NH?

lets just say my boss is manipulative. she makes changes to an already posted schedule without telling or asking employees. she recently "indefinitely suspended" an employee for not showing up for a shift that was changed and was not told about. gave promotions and promises of multiple raises that have not been recieved. improper breaks. you can only take 1 ten minute break per shift no matter how long the shift is. she accepts tips and is not supposed to. as well as taxing employees on tips in their paychecks but not herself. scheduling and working employees for 9 Consecutive days without a day off or proper breaks. she only hires women and rschool to hire high school kids for summer work. always bringing employees down. complaining about other employees to employees. yelling at employees and degrading them. is any of this even legal!? how can i do what is right???