It must be something in this bloody season or whatever other rot - everyone's depressed! I've got two other friends on the LJ that are struggling just as you are, one with anxiety, other with depression. (My neighbour who's into this lunar eclipses and all the stellar movements says it's an extremely difficult period with god knows what transitions and constellations I don't even know how to pronounce). My son with Asperger's has been struggling with major screaming fits and nervous break-downs and he's only 8, mind you. It feels like we're on the edge of something new and something's gotta give. But it's not going to be me and I hope it's not going to be you.:)
If you really want to go out and interact with someone other than your family, I suppose you have to let them know. Is there an amusement park you could go to? I understand that you probably wouldn't be able to go to all of the attractions, but surely there is some stuff you could do. Or a book club you could join to discuss literature and reading? Sometimes stuff you could do is posted on the bulletin boards of schools. Or just look at the local tourist guides and if you aren't allowed to drive or can't, ask someone to take you somewhere new - I'm sure there's places in your vicinity you haven't explored yet.
And above all - hugs of all flavours for you! I know you can do this - autumn will come with its beautiful colours and we'll all be able to see the beauty of this planet once again - and perhaps be inspired to create something wonderful! :)