Yea, I had this crap badly for a while. Now I'm actually able to get out more without any anxiety. Yet, I still get freaked about going to far from home, but at least I leave the house.
The best way to get through it is to just do it. Go out with friends, go to the store, drive around, whatever-just get out. Just go against your desire to stay home and avoid places. It may mean that your anxiety will increase a lot, but believe it or not, that is when healing begins. I've notciced that sunny days really provke my symptoms, and then I get anxious, and then I get freaked and want to go home. So sunglasses really help during the daytime because it kills some of the stimuli. Also mornings can be hard. But 'just doing it' seems to be the most effective thing I have noticed in the past 5 months in dealing with the agoraphobia. Hang in there.