Those things in themselves don't make you a bad person. I think it's the behaviour we do that is the problem, if we make poor impulsive choices over and over again? I don't know anything about BPD. I thought the acronym was for bipolar disorder. Which I guess is the more extreme behaviour of days, weeks etc rather than being mad for a day or so? Please correct me if I'm wrong.
What I do know is that it's the choices we make that are judged by others if we are "good" or "bad". Not the low self confidence or emotional feelings of inadequacy or inner conflicts.