My husband has control over his dreams. It started when he was 5 and didn't like the monsters with red and green flashing eyes. So he would become aware that he was dreaming and wake himself up. He can also change his dreams, but that's harder. My kids and I all wish we could do this. I never have the slightest idea I'm dreaming. Most people don't.
I have very vivid and life like dreams that often cause me to have a good or bad day depending on the emotions felt during the dream.
I have been able to change the outcome of a nightmare i.e. not drive down the dangerous road, or wake myself up. They say by doing that it is a very primitive form of psychic ability that you can build upon. Trust me. I woke right up after rescuing that poor dog!
When I had high fevers as a kid, I had the same dream each time. The last time I had a high fever I was a young adult. I had the dream. I still remember it. It's very vivid and emotionally alarming. But means nothing to anyone when recanted.
But I can't control what's in my dream or who shows up in them or what happens.