I’ve reflected on this a lot because I experience it too, and with the perspective of helping others, I’ve come across a possible path to handle these kinds of situations - getting out of the fight-or-flight state to manage ourselves. Finding out why this situation feels like a threat to us. If someone knows how to do it, I would greatly appreciate if you could share it. For now, I’ll discuss it with my therapist, and I’ll share any insights that come from it. But punishing ourselves for not knowing how to respond when our mind believes we’re in danger and is solely focused on keeping us safe is counterproductive.
Remind myself of the end goal or boost my confidence by remembering previous successes or positive outcomes. When that just doesn’t work I try a “fake it til you make it” approach to force myself to get started. So often whatever we were nervous about ends up being unfounded or way less intimidating that we thought!
Oh boy do I relate to this! This has been a big issue for me for certain stressful tasks. At the end I had to admit that some things I can't do alone, and ask for friends or family to accompany me or to do it with me. Or even hiring a professional for things like my taxes for example even though most people manage it on their own. Nevertheless it's still a problem. I often try to do things on my own as it's difficult to ask for help, especially for things that are easy for most people and then I end up paralyzed as you described. Sometimes it takes me weeks or months to admit that it's time for me to turn to my friends for help again. It's a struggle.