Hang in there. Remember to take care of You first. Maybe it just isn't a good time to visit your bro. You are allowed to say no.
But if you do go, taking a friend is actually a great idea. If it's a "guilt trip", pun intended, this is a good way to keep it light.
My past trauma is Never a topic with family & if you don't want yours to be, that's okay.
Are you a Bigbear or do you live in BigBear? You have friends here. Hope that helps ...