6ft tall but only 30 inch chest... I’m cooked 💀

Hey everyone, I'm a 6'0" male with a seriously underdeveloped chest – only 30 inches. It’s not fat or muscle issue – it’s mostly because of an extremely narrow ribcage and severe rib flare. My waist is literally wider than my upper torso. It looks super disproportionate and ruins my entire posture, aesthetics, and confidence. Even my back is narrow, and my ribs pop out especially from the bottom sides (flare). I’ve tried some basic posture corrections but barely any improvement.

Now I’m exploring two things:

1. Subliminals (for rib cage expansion & rib flare correction)

2. Breathwork / yogic techniques (like pranayama or side-rib breathing)

If anyone here has actually seen real physical expansion in their ribcage, improvement in flare, or overall better proportions through either of these (or anything else), I would LOVE your input. Please share your experience or suggestions. 🙏 Also if there's any specific subliminal you used (YT or paid), please link it. I’m open to anything that doesn’t involve surgery or drugs.

Thanks in advance. Hoping this helps others too who are silently struggling with the same.