I can certainly work with a team and I can program at least as well as most of my peers, but interviews are difficult for me.
You could go find your nearest open-mic night and sing/play for the audience. You can read poetry or sing karaoke.
It's probably going to suck the first time you do this. However, keep doing it. Eventually, you will get more comfortable and confident. It takes lots of practice.
I did a lot of stage performances as a musician. I used to vomit before going on stage. Eventually, I got used to it. Eventually, I was able to interact with the crowd. Eventually, I got comfortable. This confidence helped with many other areas of my life. It did take work and pushing through the discomfort and fear. It was not easy.
This may work for you.
This seems like a good interview process. If you're qualified for the position, then what part of the interview is working against you?