Coming from someone with a degree in PT, if you have a shoulder injury, you should NOT be continuing with exercises past 70-90degrees shoulder flexion..
That means when your arm is at your side=0,
straight in front=90, r
eaching for the sky=180.
Why? As your arm is lifted, the space in the shoulder joint is compressed. There are a bunch of tendons, bursa, etc in the joint that need their space to function properly. When there is an injury, there can be assumed swelling, shrinking the available space to keep tendons happy.
If the space gets reduced what happens? Pain, impingement(tendons get pinched between bone), and repetitive injury.

What exercises should you skip?
Anything "overhead" for sure.
Limit exercises that are past chest level. & if you have a choice, choose exercises that allow the most stability of the shoulder. An exercise with your arm at your side is much safer than an exercise with your arm moving around freely without any support.
Hope this helps.