Anxiety Support Group
Anxiety is a physical condition marked by intense and persistent feelings of distress, fear, angst or dread. General anxiety caused by routine day-to-day stresses usually passes quickly and is experienced by almost everyone at one time or another. However, such feelings that linger over time and are very difficult to cope with, and which lack a clear cause, may indicate...

Being fired is not your problem. It is actually the problem of the person who fired you and displayed inappropriate workplace behavior.
As simpson states, when you interview for a job, you're also looking to see if it is a good fit for your skills, ability, and so you're in control of your actions, your words, and your choices.
Whether it was false firing or a different reason makes zero difference in your skills. All it does is show that there is a problem in that workplace.
Smile, stand tall with shoulders straight, and be confident in your skills.
Best wishes, you can do this!
I would suggest you let this be the first of a series of posts allot like this one to help you sort the yaddahs from the blahs while you put together and execute your plan of action. Finding your niche in the world is no small or justy affair. It helps me to take monsters as big as that one in smaller, more digestible chunks as the confusions arise. The emotional support rocks, too. These loads are easier when shared.
Welcome aboard, Rosie. Hope you find stabilizing companionship here.
Welcome to the forum. I hope you will have the favor in the job that you are applying for. Continue to do your best, you are in my prayers. Take care of yourself. Please update us.