Your dream is very interesting. I don't know whether the dreamer himself is a man or a woman. There are several similarities in your dreams: 1. It's all about water. Water is a symbol of emotion. Your first dream appeared in a river. What is this river bank? What is on the other side? The river is not clear, which may mean that the feelings are not very pure. The second dream is swimming. Swimming is a symbol of the process of "sex", but if you swim alone, the water becomes dirty. Is this your attitude towards sex? The third dream refers to the explanation of other dreams: fear of sex. The fourth dream: fishing in the water, we say "the joy of fish and water", can you understand? The fifth dream: I dreamed of killing people and running around. If the person chasing you is yourself, can you run?
The true meaning of dreams can only be understood by the dreamer himself.