that state of conciousness with that blackness

a problem i have is that whenever my lucid dreams fade, i think i’m awake so i open my eyes, when in fact most of the time i’m actually still asleep. i get so confused because of that black void there is, just when your eyes are closed. so how do you know when you’re awake or still sleeping?

I can usually tell. I just get like a sense that I’m still asleep.