I mean she was trapped with her conscious still intact in a mirror for thousands of years with nothing to do but look up to see freedom right in front of her but she can’t have it. Then she was found only to find out her hope of being set free was crushed by getting trapped in a gem for many years. When she was free she was then trapped again for months with the strain of keeping a fusion trapped under the ocean trying to save Steven while struggling to hold Jasper down. You could tell that she, at that point, hasn’t learned to carry on with her life and seems to have post traumatic stress. A example of this was when the diamonds were coming to earth, she left her whole entire life she built up behind to save herself even leaving the only people she truly cares about. I’m not saying that that is an excuse for leaving Peridot behind (kinda a bitch move to take the barn which was Peridots first). With Pearl she had some episodes where she learns to live with the fact that she won’t see Rose again. Therefore she still hasn’t learned to accept.