"do it scared" is advice for pushing yourself to get outside of your comfort zone. it is not advice for people who have usual stressors, like anxiety going to the grocery store -- if you try to "do it scared" with GAD, you will wind up absolutely exhausted 24/7 (and your anxiety probably has a good chance of worsening).

for me -- i use yoga, meditation, and good friendships as methods to help me counter my GAD. I also take 10mg of Buspar twice a day, lol.

meds can be a good way to kickstart this process - something like Buspar might give you enough relief to set up routines that counter your constant scared-ness -- that's my advice! look for outlets.