Really, the thing that works for me is to just keep pushing forward, no matter what. Don't let an anxious thought stop you from anything. Just keep pushing, eventually and truly they lose power! It isn't easy but it can be done, if the will to overcome this is strong enough, use that to fuel your hatred for anxiety by simply not listening. Let yout body feel the adrenaline, and just accept your body's reaction and try to push forward. Good luck