Welcome to this very helpful group. I'm very sorry you need to be here, but believe you'll find it helpful. There are a lot of ways to prevent reinfection and I think you'll get other suggestions. Here's one link and pages that answer your question start on 28 or 29.
https://www.ntminfo.org/wp-content/uploads/2019/09/Guide-for-Patients-with-NTM-Infections-2019-09.pdf
I'm glad you're tolerating meds and feeling Ok.
Are you doing airway clearance?