little brother is making a mess! *60% trigger*

here we go again. little brother is the youngest alter of the system. he's happy when there is some one around that we have close and friendly contact with. he considers my friends to be his older brothers/sisters/caretakers.
however places where no one around or crowded places where I don't know anyone do trigger this alter very often. and when he comes out, he's very sad because 'there is no one' or 'there are so many but no one will help me'. he says the same things every single time he's triggered that way.
with this almost every part of the system gets triggered trying to help/agree/disagree/give advice/take revenge etc etc (you name it), starting a state of total inner chaos.
I've lately come to figure out that he's not looking at the present situation when this happens, it's about something in the past that keeps coming back. and I know it, I've seen so many examples of this.

but yet I really don't know what to do anymore, nothing I've tried has worked to create a smaller mess of the situation every time this happens, or prevent this from happening.
being more around people is one advice I got but that's not easy at all since there are human hating alters that constantly fight being social/ around people.

It's really tiring to deal with this.
any hints/ comments are welcome

Don't have any advice, but just wanted you to know I read your post and heard you. Sorry you're having a hard time right now. Sara wants you to tell little brother sometimes strangers are ok, even though we can't talk to them.

Good luck

Just from reading what you wrote, and I may have read it wrong, it sounds like he is just a little kid that wants support. What if you were that support? Have you tried to gain his trust so that he knows if someone else isn't around, that you are there for him (to take care of him) no matter what is going on?