Hmmm I know nothing I say could make you feel better. But remind yourself THIS - you are healthy, you can see the world, you can walk, so nothing is impossible. Find a way to go to places that are further away from your home, even if you have to get there by WALKING for an hour or more. Nothing is stopping you but yourself. When you can do this, you may be able to work on other problems, like driving or feel motivated to volunteer, not only does it make you feel worthy in this world, not a waste of space, it also helps you making friends with other people.