Dream today

I dreamt that my brother was trying to kill me by tricking me. I, at the moment, felt this is going to be my last moment and realised the way I was fooled by him cleverly.
First, I was not in talking terms with him but was ready to help/talk if needed. Second, he was could control a dog which was not friendly with others. I was appreciative of it, but not verbally. Third, I was doing an exercise he joined in and was making the dog to copy his moves. Fourth, I forgot what it was exactly, but there was an element of I winning something. Fifth, he modified the moves and for some reason, I started copying it, rather was trying it out. Sixth, he felt like he was struck and I was trying to help him. Seventh, he pounced on me and locked me down. He was on top of me, holding my hands. I couldn't move or push him. He then was proceeding to bite my neck. I was calling for help, but there was no one. I was shouting for my mother, but I knew my mother even if she was there she won't help me against my brother. She will always support my brother. I felt hopeless and repented for me getting lured into the trap. That really felt like the last moment of my life that I woke up.
I realised how he got my trust, then waited for me to be in a position to attack me. I was lured into it, by winning something. My greed. When I got up, I wanted to note it down. This is a lesson. There are people all around me, who are doing things only to get back from me something. Accept no favour, please. That's the message I want to give you now.