I've had terrible posture for years and have tried lots of ways to fix it. After finally going to a good Physical Therapist, I'm finally making great progress t

I've had terrible posture for years and have tried lots of ways to fix it. After finally going to a good Physical Therapist, I'm finally making great progress that people have commented on. The problem is that you can't just put yourself in a better posture. You can fix workplace ergonomics (and should!), but you have tight muscles and weak muscles and attempting to just "sit up straight" doesn't work and may actively be harmful. For example, lots of people told me to sit up straight as a kid, which resulted in my tilting my chin up to give the appearance of sitting it straighter, but it actually made my posture much worse by rounding my spine more. So to solve it, see a professional. They will give you exercises to fix the muscles that are pulling your spine out of alignment. The exercises will loosen tight muscles, give you more range of motion, strengthen weak muscles like your core, and in a few months will get you feeling much better and standing much straighter.