7) Nightmares have a very positive connotation for the dreamer and should be embraced. They are simulations which prepares you psychologically for future difficulties and challenges. If you wake up from a nightmare and feel relieved that it is over, consider your day blessed.
8) Not all details in a dream have a profound meaning. There is a lot of randomly generated "noise" that is not worth pondering about, especially if you have no special emotional reaction to it within the dream. Dreams are not David Lynch movies, mathematical equations or puzzles to be solved, even though they certainly are cryptic, fickle and frustrating to interpret.
9) A good first step to interpret a dream is to focus on your emotional responses within them. The stronger the emotion, the more there is to take away from this part of the dream.
10) Over-analysis of a dream is a mistake and a dead-end. It is possible that the ultimate takeaway from a dream will be nothing more than a feeling that dissipates 5 minutes after waking up, or just a few mental images. The more one tries to recall a dream after the fact, the more one onevitably distorts and changes the original experience, which is fundamentally illogical and very hard to put into words in the first place. if the meaning of a dream does not make sense after 5 minutes, it will not make more sense after 4 hours of deep pondering. Eventually, it is OK to let go of a dream and move on with real life.
The above to be taken with a grain of salt, since on different days, I have different perspectives, but still as good as I can put my own thoughts and experience on the subject