it is scary until it actually happens, change is scary . but once it happens all those harmful (or in your words adverse) behaviors stop because as a whole person you have the control to behave good or bad your choice, just like a normal person chooses to be good /do good things or chooses to be bad\do bad things.

I had an alter that would act out in harmful to me and other ways, but once I was integrated I was able to control those thoughts and actions on my own just like a normal person can decide whether to harm their self or others.

just a heads up there is a grey box at the bottom of the page with all kinds of numbers to call when you are feeling like in your words... I don't think I'm really going to live that much longer anyways.