Tried to do WBTB but i had very little success

thanks to a recomendation by somebody in this reddit I decided to try WBTB with WILD last night, went to sleep at 10pm and set an alarm for about 4:30am, i went to sleep pretty easily and woke up remembering a little of the dream i had, i stayed awake for the time i finished listening to the song on my alarm and turned it off, and tried to go back to sleep while keeping aware so i could LD, i started having weird sensations as i couldn't move so i just assumed it was SP and it was harmless so i stayed calm, then suddenly i was in a really dark room where i could barely see my hands, i counted my fingers and confirmed i was in a dream since i had only 4, but i woke up inmediately and when i tried doing it again i couldn't.

Did i do something wrong?