Thanks for your posts, Carborendum and NeuroTypical! Very different responses, naturally, from two very different people.
You are right, Carborendum, that was a heck of a way to introduce myself - but then I am new to mormonhub and didn't know any better. It is easy to forget in an online venue that readers don't know you personally and might be inclined to assume the worst. LOL
You might be interested in what LDS Topics says about dreams as a type of revelation: https://www.lds.org/topics/revelation?lang=eng. In my book I reference Elder Sterling W Sill, who discussed the potential profitability of dreams and learning from them in one of his books. There is less said in more recent years, but IMO it is not because dreams are invalid themselves, but because people have largely lost the ability to understand them. Dreams are like music - a language all their own, and a highly symbolic one at that. Not all people dream. That's a fact. Those who do may or may not receive inspired dreams. There is nothing wrong with NOT receiving dreams, either. The Lord gives different gifts to each person. But it's also OK if people do dream and interpret. I dream, but I have also had gifts of music, art and language, which, along with some heavy trials and the scriptures, have helped me to figure some things out. I also have a soundly-based testimony of the Gospel and revelation in general, and am comfortable with who I am.
Dreams have kind of a bad reputation because they are affected by any kind of physical, mental, emotional or spiritual illness. They are not an entry-level approach to receiving revelation. Far from it. There are also issues of agency. Many people don't need much of an excuse to lord authority over others, and for unstable people, dreams might provoke such actions. Also, as you said, dreams are influenced by the things that have been on your mind, but that doesn't negate potential for instruction in and of itself - in fact, it is evidence that the Lord is using what you know to teach you something you may not understand fully . Perhaps dreams were a more commonly understood or reliable source of revelation in another day and age, when there were no electronic distractions. I am continually amazed at the Lord's ability to cobble different symbols together to teach me something that otherwise would never have entered my head.