Shoulders! A common complaint area of pain for a lot of people. So form is even more important, especially when you want to add load to your lifts.
If you cannot depress your shoulders down and keep them there, give overhead pressing a miss until you can see someone like me that can fix the issue with some serious deep tissue work.
Our sedentary lifestyle has too many of us hunched over in inopportune postures all day long. The devolution into ape posture. Jokes aside, learning how to train and move your body correctly can vastly help and shape your body and posture for the better. So enjoy!