You need to do these, then.
Go to your local hardware store, buy a PVC pipe about 5 ft. in length, put it in plain sight, and be amazed at how much better your mobility will become over a short period of time.
Mobility is something that is attained over time. It takes consistent effort to get there.
It’s taken me months to get to this point with a PVC pipe on an overhead squat!
Of course, you can modify these by squatting to a box if you have trouble getting into a deeper squat due to hip, shoulder, or ankle mobility restrictions.
Got any favorite shoulder mobility exercises?