What should I do?

Brothers supposed to back each other, but UNFORTUNATELY in my case this is ruled out. In front of me, he'd be a regular brother but at my back a drop of water could be as huge as a tsunami. Turning everyone if he could against me. I'm overwhelmed by this. So what should I do?

Not like my other brother, I can't manage things like this. When I was a kid, when having trouble I would keep it inside me. I would stay home, not going out even there's a party just next door.

I hope this is what my brother expect.