It's OK to take a break from WILDs. I have had practically no success with classical WILD as well. I see you have had some good number of LDs, are they all DILDs? Any DEILDs? I had my first DEILD a few days ago and it showed me a lot of how the dream transition feels. I feel a lot more confident now about classical WILD (in fact this morning I felt like I almost WILDed -- I noticed dream image forming, very similar to how the DEILD dream image formed, but this morning they all faded when I turned attention to them).

First and foremost with WILD are the basics: you need to fall asleep. It sounds like you're not getting close to falling asleep, so I'd focus more on relaxation for now, while trying to maintain a tiny pearl of awareness embedded in some mental anchor.

And more subtley, "trying" usually doesn't work. You need to set your mind for what you want to do, and then just let it happen. Just as "trying" to sleep frequently results in insomnia, "trying" to WILD results in no WILD... relax, while repeating a light mantra or some other mental anchor to hang a bit of awareness.