@Malice I saw you talking about your breathing problems on Tom Bilyeus show. My problems weren't as bad as yours but still rough. The exercises in this book literally doubled my cardio. Improved my sleep 2 to 3x and increased my general calmness

Its Breath by James Nestor. He's been on Rogan etc to.
It's a well written book to but if you want to just skip to the exercises they're in the book and he has some videos on his website. Hope this helps