Have you tried electrolyte drinks (not at the store, those are probably still all fake, I mean just making your own with magnesium glycinate and potassium citrate/chloride) & replacing cardio with strength training? It's the only thing that ever got rid of it for me, ever.

Also try eating something that's just pure protein, like tuna + tomatoes + red onion + cilantro + lime as a sandwich/burrito filling. Throw in an avocado and that's a good chunk of your daily fiber too.

Sorry if this is annoying but it gave me a very palpable feeling of joy & optimism when I started (also aggression but that's just how I am)