Hi Bon,
Nice to meet you!
I understand the anxiety that comes with this disease. Most probably, we have all experienced it at some time. As others have said, educating ourselves on trustworthy sites can be helpful. A good resource is the NTM Info & Research YouTube channel and their excellent webinars. Below is one example, however, Dr. Devon Smith from National Jewish Health has done many webinars as part of their Emotional Wellness series.
https://bit.ly/41ci1hS
Learning how to manage anxiety and depression with a disease that we will have for a lifetime is a worthy undertaking. One practice is to try our best to not get ahead of ourselves. Not all cases of MAC need to be managed with antibiotics. Airway clearance, exercise, healthy eating and stress management are always useful and in some situations might be enough. Talk to your doctor about a "watchful waiting" approach. Certainly, it will depend on your particular situation and going to National Jewish for a second opinion is an excellent idea.

Personally, I was diagnosed with MAC in 2017 and to date, have not needed to take antibiotics. I am presently culturing negative and attribute my current health to making lots of little changes. I see in a previous post you asked to speak with someone. I was fortunate to speak with a patient advocate when I was first diagnosed and that was life-changing for me. So, I like doing the same for others. I offer a short talk to help people put together a couple of items to discuss with their medical team. I do this as a form of "virtual community service." Contact me if you are interested.
BE well,
Linda Esposito