My neck doesn't turn well to the rightㅠㅠ

My shoulder has been hurting a lot since last winter.

I haven't been able to turn my neck to the right properly since when.

So, I was hospitalized at a traditional Korean medicine hospital in February, received acupuncture, and underwent about 20 sessions of manual therapy.

It seemed to get a little better back then.

Lately, my neck hasn't been turning well again. The manual therapy doctor says it's because my fascia has shortened.

I feel like stretching regularly isn't very effective.

How can a shortened fascia recover?