wanted to add.. I had more problems with abusive alters or as some people call them persecuting alters and also called perpetrator alters. these alters of mine were real close to what my treatment providers called introjects (I also had/ have a couple of these)

my perpetrator/ persecuting alters were very strong, acting like the abuser, pushing my friends away, self injury if I tried to tell, suicidal, repeating words at me that my abuser said and did....

how we (my treatment providers and I) dealt with this was if they became a danger to their self and others I was hospitalized until stable again. While in the hospital we worked on finding the trigger (what caused them to do what they did) and then made treatment plans so that I could handle the problems that would trigger these alters to start acting up/ acting out/ set up emergency plans on what to do instead of acting on those self injury, suicide thoughts and others stuff.