Have u been diagnosed as anything?? I think how your brought up and your social situation definitely affects your abilities to make friends etc.Did u or do you go out alot in previous years?? You could maybe try something like online chat rooms or other social interaction sites as its easier to speak too people and take it from there.Its all about confidence and self asteem, if you have this then it helps.Its tough mate I know the feeling, I'm alone right now too after having a terrible year, god I'm ashamed at what I've became!!