Shoulder Seperation

About a year I ago I seperated my shoulder and now I can bench and my shoulder feels like it is about back to regular strength if not more. But sometimes when I go pretty hevy my shoulder I seperated like kicks out and makes the weight harder. My right shoulder stays at 45 degrees and is fine. But the other shoulder goes way out. I have 2 questions. 1. Is there any way I can preent this? 2. Will this affect how much my bench will move. Say 7 years from now I wanna bench 400 its possible right? My shoulder wont give out.

i know that once you have joint probs you always have them
like knees, elbows, and shoulders
i think that maybe somethin that will support the area will help
light bench shirt maybe
somethin that holds the area and keeps it from slippin out
i dont know im not a professional
i want to be a doctor and i know some things about liftin and all
so maybe someone else can tell you somethin
in the mean time i hope the shoulder gets better
 

If weightlifting was easy, everyone would do it

You gotta lift BIG, to get BIG

Doesn't matter how much you lift but how you lift it

thanx
 
I actaully havea  doctor appoinment soon.