definitely recommend studying variations of breathwork, which Leo touches on in "shamanic breathwork" as one form. Also peptides, nootropic and otherwise are worth brushing up on. I respectfully disagree about the omega 3's (in quality form), as I do on the benefits of cold showers (see Wim Hof), but agree that there are no cheat codes and focusing on fundamentals, diet, routine, consistency. Speaking for myself, if I break my discipline just a little... adopt a "just this once" attitude it becomes a slippery slope and one bad choice cascades to many. Routine and consistency are everything.