Desert Trailer with a T-Rex, my brother, and a crowd

Date: 7/6/2016

So this used to be a frequently reoccurring dream it started when I was about 5 and kept reoccurring until I was about 10 or 11, (I'm 15 now.) It reoccurred very frequently, that's why I remember it. So I'm in a desert and my brother and I are riding around in a jeep. Suddenly the jeep breaks down and a giant T-Rex is chasing is. Eventually we see a trailer, like what those big trucks pull to deliver stuff, but it only has two sides on it, (the longer ones), when the T-Rex finds out where we are he doesn't attack, he just stands opposite of the side of the trailer from me. Then I try to go to the right to escape but the T-Rex goes over there, I try the left but he goes over there, too. Then I realize that he is tracking me even though he can't see me. Then I am suddenly seeing my self and my brother from a far away third-person view. But it's not just us, the trailer has expanded in width and there is now a crowd of people that I don't know--but I read that in dreams your mind can't make new faces so I must have known these people, but I didn't-- then my brother started to run out the right side and the crowd followed him but the T-Rex didn't care, he just kept trying to get me. I never escape I just wake up after a long time of trying to. THE WEIRD PART: now, like I said it was a reoccurring dream, a few years after I had the first one, while still having it, after I've met new people, I have it again but recognize some people in the crowd, they were people I had JUST met (from school), but they were the same people that had always been there so I don't know how my brain knew what they looked like if I hadn't met them yet. And until it stopped reoccurring, I kept meeting new people then recognizing them in the dream.