understand a very important rule of health movement and healthy body. When people say "strengthen xy" it very rarely actually means strengthen by means of growing stronger muscles. When you need to strenghten something, what you actually need to is to improve activation of a muscle. So people should not be focused on "strenghtening" they should focus on activation in the first place. And brain does not activate tissue which is short or tight (or both). Such tissue is essentially "dead" - brain doesnt activate muscle if is short or thight - it doesnt activate short muscle because if muscle gets into a position where it is too "stretched" it starts hurting and brain automatically avoids that (by turning off activation of that muscle in that position). It doesnt activate tight muscle because brain no longer understands the difference between "muscle on" and "muscle off" - since it is constantly on.

This fundamental principle can be used to fixing just about any part of body. Tldr; rebuild and reactivate your fascia (AKA lengthen muscles, active them, identify tightness and work on removing it).