Talk to a therapist or counselor. Talking about getting fired with your partner, your family or close friends can definitely help you deal with the trauma of being fired. But professional help from a therapist or counselor will help you work through any anger issues you may have as a result of being fired.
How do I overcome being fired?
Can you be fired without a warning?
No, generally firing an employee without a warning is not considered illegal. Most employees are considered at will employees and in this case the employer can terminate you without any warning as long as it is not illegal. Your employer does not need a good cause to fire you.
How do you talk out of being fired?