Start looking for a new job in a similar industry. Once you find something that you like, apply to the position. In your application, be sure to mention any success that you had at the job you were fired from. Even when you're fired from a job, there are still places where you made an impact and a positive contribution. So the first thing you can do is really focus on the areas where you made an impact and be very clear on what your impact was. The second thing you can do is be authentic and honest and own the fact that it wasn't a good fit, and explain why this new opportunity will be a better one.