Oh yes, NJH can help - help you to live your best life, with or without Bronchiectasis and MAC and with or without antibiotics. They will teach you the best way (for you) to do airway clearance, cover lifestyle issues like exercise, diet and rest, maybe offer tips to help ease anxiety.
Trust me, in early days, I was where you are - I thought I had to change the way I did everything, I would never feel well again, etc. Time, experience, wise doctors and the wonderful members here have taught me to just make it part of life.

And of course, we are always here to encourage you.
Sue