I'm in almost the same situation.
I cannot remember the last time I woke up during night. Except for the 3 times I've woken myself up on purpose to try and remember my dreams.
I actually think it's many years since last time I woke up during the night.
This makes it really hard to write a dream-journal since I don't remember anything at all in the morning.

I think I might've had some success with one technique though.
I read here on the forums that if you write a summary of your entire day before you go to sleep, this will help you remember your dreams.
I've done it twice with mixed results (if you can say that after two tries ), but I also woke myself up those two nights to try WILD which failed, so I didn't get a good nights sleep.
I think that might've ruined it a bit, so I'm gonna keep trying!