This is odd because I've only dreamt that I was someone else once before.
So in my dream I was a man with a wife and two children, both probably in their early teens. I think we were rich because we lived in a big house. I had one of those jobs that you have to travel a lot. I was going to go to Africa and my family didn't want me to go. My son had a dream about a rat and he was terrified because it somehow foreshadowed my death. My daughter told me "People in Africa are stupid", and I explained to her that African children are very intelligent and if they had the money we have they would be almost the same as us.
On our kitchen table there were tiny fruit trees growing in bowls. My daughter took the last peach and I had to settle for an apple. There was also a tiny strawberry tree and a tiny blueberry tree. I was going to have some blueberries but when I looked closely at the tree I saw that there were tiny mushrooms growing on it. I guess my daughter felt bad, because she threw me the peach from across the table. A tall, chubby black man was there (maybe he was going to go to Africa with me, I don't know) and he said something like "your daughter is gullible". I replied "No, she's generous." I was proud of her.