sitting with the discomfort

How long does it take for the intrusive thoughts to go away

Does anyone have any experience with this? I wake up early with severe, severe anxiety and nothing seems to help. I try embracing the anxiety, breathing, and exercising. But these things only seem to help a little. Fortunately, I do think the length of the attacks are getting shorter (mainly because I'm still trying my best to live normally in spite of them), but they are still lasting a good 5-6 hours. They are quite debilitating. Does anyone have any advice for dealing with these? I've read much about potential solutions (being okay with the anxiety), but I was looking for some personal antecdotes. Thank you

Does anyone else experience a moment of clarity where you feel strong relief that the intrusive thought isn’t true, only to then immediately start questioning if you’ve only convinced yourself that because you don’t want the thought to be true? I’m pretty confident it would take some crazy mental gymnastics to actually successfully convince myself I didn’t do something that I deep down knew I did, but every time I resist the compulsions and try to sit with the uncertainty or tell myself to think about what is logical, I usually briefly know that this probably didn’t happen but am unable to move on out of fear I’m just in denial and have convinced myself of that.