Recently I became lucid during a dream where I was coming back home from work. Everything was fine until I wondered if all I remember was just a dream or it really happened? I lost the dream because of I wasn't able to determine whether I dreamed that work day or it was for real. At the end, I woke up out of place and it took me a little to realize that I was taking a nap after work.
Do you have any suggestions on how to determine real memories during a lucid without forcing yourself to wake up when something like that happens?