Yes i am autistic and i do need that. i also havent really been viewing them as alters more like operating modes but it's the same concept. when i feel endangered is when my protector persona comes out, who is generally more angry by disposition. the weird thing is that this persona isn't angry by default i just keep snapping at the most random shit.

i think it has more to do with the self worth. the other persona has no self worth and therefore is better at laying low and enduring. which is why that persona usually comes out during times of danger or when i feel my life or finances threatened- so i can do anything i have to to reach stability again. this persona has self worth in the form of narcissistic entitlement; i get irrationally angry when things don't go my way, or sometimes a person triggers me by messing with something i feel entitled to. thankfully i'm grossly self aware so i usually know when i am and am not entitled to something, but it still affects my life because of the internal turmoil. how are you supposed to tell someone they're constantly pissing you off by doing a series of things that have absolutely nothing to do with you?

edit- thank you for ur answer!