Re: I'm having trouble leaving the house
I recommend the Anxiety and Phobia Workbook by Dr. Edmond J. Bourne. It will help you do self directed therapy to address your fears.
From a practical standpoint the best thing you can do is to face your fear and make yourself go out. Its easy to talk ourselves out of doing things that involve our fears/anxieties but each time we do that we only reinforce the fear. When you face the fear you diminish it. That doesn't mean you will go outside and feel no anxiety, the trick is to CHOOSE to go outside even though you know you will have anxiety. At first it will be hard, but over time if you keep doing it the fear will fade away. Now this doesn't need to be done all at once in a big grandiose step (like say deciding to take a solo trip around the world). The book will help you with it, but basically you can build up step by step. Maybe your first step will involve making yourself go to the edge of your yard day after day until the anxiety for that starts to fade. Then once that becomes easier you could step it up and say go to the end of your street. You just keep repeating that process with bigger and bigger challenges until the fear is minimal or gone.
It will require hard work and patience, but the reward is definitely worth it.