Best is to get a private coach and show him the videos.
Not all coaches are willing to do this so do your research first.
And it'll cost. Probably a lot if it's a good coach. The flipside is you get to shave years, if not decades, in your journey.
If I were to start out again and I had the money, I'd do that.
Videos of me approaching, trying to firl and even recordings on dates.
You might be doing a bunch of things wrong but you're totally oblivious to them.
A coach can spot it.
I bet that's as close as you can get to super fast improvement.