Hope a double post is okay in this situation. Wanted to post an update.
So I did cold approach for the first time today.
Keep in mind my social anxiety has basically been so bad that I haven't been leaving the house except to buy groceries. Just walking down the street past people is difficult for me.
So my goal for today was just to get 10 interactions over a ~5 hour period. They could be as simple as asking for directions etc.
We actually ended up cutting down our approach time to a little under 2 hours.
During that time I made approx. 20 approaches (I lost count!

but can confirm at least 16-17, and some that I don't remember the faces of on top of that, so 20 is a good estimate), most of which were asking for directions etc.
Of those approaches, I complemented the girl in only 4 cases.
Of those, I asked two if they'd be interested in grabbing coffee some time.
Of those, one exchanged details with me and gave me her email. She was the most attractive girl I set eyes on the entire day (not just out the ones I approached) so that made me feel pretty good.

Honestly even if she flakes I don't think anything can take away how good I feel about getting that result on my first try! I think that'll be a permanent motivator - any time I feel like anxiety is a threat, I can remind myself about that interaction and convince myself that with a little practice anxiety will never be an issue again.
So of the 4 approaches where I did more than simply ask for directions, I succeeded in getting something back from 1. That's a way better success rate than I expected as someone with my level of social anxiety and having never done cold approach before.
The full in depth story can be found in my journal:
https://www.nofap.com/forum/index.php?threads/jgs-road-to-mastery.68808/page-13#post-916427