My life Is Depressing... Can Anyone Help me Out?

Ok, Basically im a 16 year old kid pretty calm & polite and Im always on my laptop/computer or playstation and Im on it all hours, even when i have days off school or weekends its just me and my room thats it! where all my electrical stuff is, I never make the effort to socialise and when i speak to friends on the computer it dosent feel right, its like i love this girl the year below me, but i get jealous because she talks to other boys on there and it just gets me all wound up & upset, and I have emotional problems, I have aspergous and im on the autistic spectrum, I find it hard to communicate and when i come home i let my emotions out on the computer telling people im gonna kill them or im just having ago at people on facebook for no reason, I dont feel anything hardly anymore, I dont feel happy or anything like that. Its half because of addiction towards computer games and electronics has got me un socialable, And I dont like where I live, which makes it worse! I don't feel safe where I live, And im afraid lots of people hate me around where i live because I never go out, ive even had friends come knock for me once and i was just to scared to even answer the door i was petrified, and I just want to be a happy normal kid who goes out and has fun with his friends, and have a girlfriend that I will treat right! and i proberly would feel great and happy! but no I dont have very good grades which makes me even more down and Ive left school and I know im just going to have a crap life with the school grades I have and not ending up with a good job and decent pay, I am good at computers though because ive been on them most of my life and i enjoy being on them if you must know but I really need help with my life, Could anyone give me any suggestions? :(