Agreed. I'm currently trying to fix my shoulders. Turns out the fix to "some of your muscles are too powerful and some aren't enough" is not an easy one and consists mostly in slowly and painfully correcting your posture with targeted exercises. Daily. For months.
I'm almost to the point where I say fuck it, I'll just train through pain and hopefully it will fix itself at some point. It worked for my tennis elbow after all... XD