Is it OK to quit immediately?
Most U.S. states have at-will employment, which means that an employee can resign without notice and for no stated cause. However, there are some exceptions. For employees covered by an employment contract, the contract may stipulate how much notice you are expected to give.
Should I feel guilty for quitting?
Assuming you manage your departure gracefully, you absolutely shouldn't feel guilty. But guilt is a natural feeling that many people have when leaving an employer, especially if the company's been great to you. And even though you shouldn't feel bad, our brains are great at coming up with reasons that you should.
Can I quit my job on the first day?
Quitting a job in the initial days of joining the organization is a little bit risky. It is better if you are patient and looks for things to improve. But if you are really not interested, then quitting it is the best choice you can opt for. It may not look good.