The brain just keeps changing it
I've become pretty good at noticing when I'm maladaptive daydreaming BUT every time I ground myself to reality the brain keeps chasing the daydream. No matter how hard I try to stay present the brain will just keep resisting and trying to go back into whatever story or scenario I had playing out in my mind. So no matter what grounding technique or breathing technique I use the daydream will continue whether I like it or not.
Honestly the worst about it is that along with this shit I have social anxiety and in my case they're probably two different problems! So either a) I'm anxious or b) I'm calm but my mind will start drifting off to somewhere