"What should I try to do? Is it ok if I keep shooting with a full grip where I slowly squeeze my grip around the gun till it goes bang."
This description makes it sound like you are not just squeezing the trigger but also the rest of your hand as you fire the gun. Some shooters prefer to use the term "press" because it gets it in your head that you keep the grip pressure the same with the rest of your hand as you only press the trigger straight back. You might try thinking of it as a trigger press instead of a trigger squeeze. Mark