Any help out there? Any hope? ?

First you have to decide if your desire to settle down and have a family overrides your agoraphobia. You have to figure out a way for you to slowly get out again, and the only way to do that is to trust someone. Like your mom. You need someone who you can trust to keep you focused from point A to point B ( from your flat to the psychologist and back ) until you can make these treks on your own. But it is you who have to decide to take those first baby steps and trust. Because you are going to have to make a leap of faith if you are going to find that someone to settle down with and have a family.