If you're progressing while doing all the right things, I think it's actually rare to have an "ah-ha" moment. Most of what I've been through has been slow and steady progress.
I've only gotten those ah-ha moments after I've been doing something wrong for a long time, and one big one I can remember was after I had been doing Mystery Method for a couple years.
I was trying to follow Mystery's M3 model religiously, I tried to think like him, and I based attraction on social value. I tried so much to neg and DHV all the time, pump BT with chick crack, and used all of Style's stupid routines. I got laid sometimes, but it certainly wasn't consistent.
Then one day I observed a natural sexualizing SO MUCH. As a devout MM follower I stayed away from sexualization in fear of triggering ASD. MM is all about NOT telegraphing interest and coming in under the radar, after all. My ah-ha moment there was all about sexualization and it was about that time I hopped onto other, more effective methods like
60YOC and other sexualization-focused methods.
After I started using more sexualization-focused stuff, I got laid more often, more consistently, and a lot quicker. I guess the real ah-ha realization was to not be such a fucking pussy that's scared of expressing himself sexually.