Yes, you're experiencing burnout. At this point, you've probably also damaged your relationship with the team; perhaps not irreperably but it will take some humility and some hard work if you want to catch back up.

Maybe it's time to look for a different role? You may get a salary cut in the process, you may not, but either way for your mental health it's worthwhile. Maybe you need to move into a role as a product owner, or coordinator, or even get involved with training.

Regardless of what you do, the time is nigh to take control of your life and find yourself a role that you can feel like you're positively able to contribute to without having to do the parts of the work that are causing you anxiety right now.