You're waking up after 5 or 6 hours and THEN trying to WILD right?
It's almost a suicide mission to go to sleep in the evening and WILD your way into a lucid dream right away.
You'll fall straight into delta/slow wave sleep (deep sleep).

If that's not the problem ... have you tried to nap for about 25 minutes in the day?
You might find it easier. Worth a shot anyway, right?