(Concern) Can I straighten my bent shoulder?

I have been hunching my shoulders since I was young.

It has become a habit just like that.

My shoulders are still hunched.

Now even the bones have become so hardened.

Even when I open my shoulders wide, they are bent inward.

I went to a Korean medicine clinic to get treatment and also received acupuncture because I wanted to fix it.

I've tried shoulder correction bands and various other things.

It's only for a moment, and I will return again.

I only consciously straighten my shoulders when I think about it, like always in my mind.

Sometimes I just stretch my shoulders, but at other moments I find myself slouching again.

Is there a way to fix it properly?