Dude that sucks man. You need to get excersice. I dont do a whole lot either but i got a gym set up in my basement, nothing fancy but it gets the job done. If you;re spending all you're time at home you might as well get in shape in case you ever do want to go out. Don't watch so much porn! Man i found this website with all these free movies and at first i was like SWEET but it's way to easy and it disensitises you! That means if u ever do get laid it will be harder for u to bust a nut and i've been there man it sucks
this doesn't sound like a problem unless you have some sort of anxiety!! i used to be like that, i'm slowly making changes. it took me til i was 18 to work up the courage to get a real job, 19 to work up the courage to ask a girl out, 19 to start driving, 19 to lose my virginity, 19 to move out.. fuck! if you're just being lazy for the fuck of it then more power to ya! haha
Do you view this as some sort of problem, or is this simply a confession? Some people are just meant to be loner types, and if you enjoy your lifestyle and have no will to change, then good for you and so what about our and the rest of society's opinion. If you're unhappy with your lifestyle, then follow the many great suggestions other posters offered about getting out of the house and doing stuff, and talk to someone about your lack of motivation. It could just be a normal teen phase, but it could be depression or something related.