I'm fairly new to lucid dreaming and I've tried a few methods that are pretty similar to the MILD method of getting your body used to reality checking in the day so you do it in your dreams but this has so far been unsuccessful.
However, I have literally just attempted my first serious WILD and I know you will all say it didn't work because it's my first time or something but it was kinda weird for me so hear me out:

I started out like you're meant to by lying completely still, I had my eyes closed and I resisted any urge to scratch or shift. After a few minutes or so I heard a couple of things, whether it was hallucinations or my family shifting in their sleep I don't know but after that I got a weird sensation sort of like pressure in my head and an ache in my stomach. My heart was beating like really fast because I could feel it pounding against my mattress (I was lying on my front) and it was a little worrying so I shifted myself to send the rollover signal back to my brain and stopped trying to get into the dream. This worked and my heart was beating a little erratically for a few minutes before it settled again. During this I experienced no hypnagogic imagery, just the weird rushing sensation in my head.

I'd really appreciate it if someone could shed some light on this or give me some advice on how best to approach a WILD or any other lucid dreaming technique.

Cheers