I have had social phobia so i know how it feels. I used to get panic attacks when in diffrent social situations. Sometimes it was an issue sometimes not. When I started to miss a lot of school and had a major panic attack when I was entering a classroom in school, then I got in contact with the school psychologist. She instantly refered me to the hospital and then I got put on medication and stuff (at that point I was also suffering from depression).
What I'm suggesting is that you find someone to talk to, maybe a proffesional like school psychologist or a therapist or something. I realise that it might not be easy to contact someone on your own, maybe there's someone you trust that can help you with that. I would never had come in contact with a psychologist if the people around me hadn't realised that something was wrong and put me in contact with people.
Good luck and I hope that I was at least a little bit helpful :)