LittleSwallow wrote:
Basicially how to you go from having practically no friends to having loads of friends and (hopefully) a boyfriend, especially when there is no social groups at the moment to join, only school and shite like that?

Please help thanks!

The post is different than the title question. To answer the title question: the secret key is boredom. Being with people you can get bored, for instance if they're quiet or just chatting about beer and sports, and then...you start talking because what comes from your brain is simply more interesting that what is coming from theirs.
I've been where you've been, having no friends practically and only knowing folks from school. There was not anything else, there was no internet. Now there are more online possibilities to meet people with similar interests. I mention Meetup a lot but don't expect the world from it. Facebook also has groups that do stuff. Creating things yourself with organizing activities is the best and most enjoyable thing because it's as interesting and cool as you can make it. Don't expect immediate success and learn from experience.