I asked AI to generate for me a tongue twisting story, that also has a lot of words with difficult letters (M,O,U,D...) And I'd have a 100 BPM metronome playing, for longer words, I cut it to one syllable per beat, the point is to train the mouth and brain to be in sync, regardless if it's boring and exhausting for breaths, I was getting breathless on day 1-2 but now on day 6 I notice I'm automatically breathing from the tummy.