How can you fix being anti-social??
First you need to find out why you don't like to. You will need to start with the root cause. Once you figure that out, you can work on that. So lets say that you don't like to socialize because you are afraid of what people think of you or that you might say the wrong thing. You would just look up self-help options to assist you in developing those skills. It could be just as simple as that you don't like talking. In that case, you could start by writing, texting, or email to get more comfortable with it. It seems like you have a desire to socialize, but are just having difficulties doing so.
just talk to some people. if you see someone just say hi or something simple. eventually you will get friends and will be social.