Follow up hatoras nedarim question

1) Can you clarify when doing (or not abstaining from something) multiple times turns it into a neder? 2) Are things included in the hataras nedarim from erev rosh hashana even though I continued with the inyan 3+ times since doing the hatoras nedarim?

1. Any mitzva or good minhag that a person does three times becomes a neder automatically (see Mishna berura, 597,6). 2. Yes, they are included. You don't have to worry about it. All the best!