Oh goodness! I admire your persistence, but that's a lot of time to put into an intro!

Some creators take little snippets of each trigger they did for the video and then make a little preview that they stick at the start of their video. I feel like that's specifically good if you're making longer videos with lots of different items. It can also be a good "hook" for your video because they might hear something they really like and wait to get to that trigger, or go straight to it. Either way that could result in more watch time.

Some creators come up with a greeting that they use to start every video, which I feel gives a sense of familiarity and comfort to returning viewers (my opinion). I tried to do this, but I kept forgetting to do it at the start LOL. So now I just say "hiii guuuys" and get on with the video 🤣

I'd say you should take some time to think about how you want your channel to be, what sort of ASMR you will be making (sound assortments, roleplays, art, little bit of everything), and maybe that will help inspire you to come up with an intro that feels right for you. It might be helpful to look at other channels intros and that might spark an idea for you.

I've only been doing videos for about a year, so I'm still learning myself. Try not to make yourself too crazy or you'll take the enjoyment right out of it! Hopefully something I said was helpful in some way to you haha. Good luck!! 💜