We are the champions

I quit my job as a public school teacher last week. We also created a plush toy and book and our sales reached $5,000 over three days. I’m a musician and a firearm instructor and I’ve found a way to put my two passions together. As an introvert, how might I set myself apart from an equally qualified extrovert? What would you say is the most important part of making a good impression on an employer in an interview? I’m confused, scared, and have lost my self-confidence. Wife’s job puts food on table and pays our bills. https://www.48days.com/we-are-the-champions/