At 30 its just too late for you man IMO, your prime years to hone and develop social/dating/etc skills have passed you by IMO! But there may still be hope if you grow some balls and have a little confidence, as others have said in previous posts, girls seem to like confidence.
I dont have any really good advice as I dont have problems like that, i'm not 30 living at home and I have had good luck with females since puberty hit lol so I cant really relate! But heres something you can try, go get some new clothes (even just a new outfit if you dont want to spend alot of money on clothes youll probably never even wear since you never get out of your Superman footy pajamas and leave the house). Dont get some clothes that people wore when you were in highschool, theyre way out of style by now. Get some nice new clothes, new and in fashion clothes, dont go pick up some wrangler jeans at kmart and a Smedium, extra tight size Spiderman tshirt at Walmart! If your not in the know, go to the Mall and find a nice clothes store and hunt down a female worker. She could probably help you find something nice that is in style and something that she likes. Chances are if she likes it, some other women may like it as well. That would definetely be a start, nice clothes is something that can make the difference between getting a number and getting the cold shoulder. Also make sure you have some nice shoes, believe it not, these days previous girlfriends and friends that are girls have said they hate a guy with nasty shoes on. Since you cant really change your face outside of plastic surgery, you can at least change your appearance and look nice clothes wise. Get a nice shower, shave up, put some cologne on and get a big stack of cash and go to the bar (or strip club so maybe you can at least see some real life titties before you die) and socialize and try to start conversations with some females. Some ppl have luck finding someone at a bar, if you get lucky she may have beer goggles and think you look like Brad Pitt. One thing could lead to another and then you can take one for the team and get your helmet wet if you catch my drift. Who cares if she doesnt want to see you again after sobering up in the morning, at least you can die saying you had wild drunk sex with a bar smut! But on the other hand, once you tell her you can go back to your PARENTS house to have sex because you still live at home she may go to the bathroom and never come back, sorry! Again, look nice, have some confidence and grow some balls. You may find someone, or maybe not. But its worth trying I guess if your 30 and never had a date.