Confusing dreams with memories
So I've been attempting to keep a dream journal, but I've been encountering a problem. Whenever I wake up from a dream, it takes me a while to realize that it didn't actually happen. For example, if I have a dream that I was talking with a friend, when I wake up I think that I actually talked to my friend a while ago, and I must not have had any dreams. It's only after I fully wake up that I register it was a dream, and by then I've forgotten most of the details.
Does anyone have any advice?