Remembering dreams has to do with letting your brain know it's important to remember a dream. You should make an effort every day after waking up to recall as much as you can and write it down (record it). The more you practice, the more details (and later dreams) you can recall.

A little trick for you: the way memory works is pretty interesting. One piece of information (dream) is linked to other pieces of information that might have very little to do with the first one. For example, while having a dream, your brain "memorizes" in what position your body is, what sounds and noises you're picking up unconsciously, etc. When you try to recall your dream, lie down in the position you were in when sleeping. Cover yourself with the blanket, etc. You get the idea