NoFap doesn't work. I've been on a two months streak before without noticing anything. I want to stay abstinent until I marry so whats the point of not ejaculating for another 10 years (since I won't do BJs or HJs with girls). I still get boners from just holding hands so I definitely dont have ED. I don't think NoFap works, I don't watch porn anyway so why can't I release sometimes?
From what I understood, you only M/O with no P. The first video you've probably seen about nofap is the Gary Wilson TEDx Talk. He mentions how P re-wires your brain, there is no talk about what M does (if it does anything). So since you don't watch P, you stopped M and your social anxiety didn't go away, maybe your social anxiety is not related to M. I am no expert on social anxiety, I hope someone here can point you to other resources to deal with it.