Hi Ssevo, and welcome to the site.
Social phobia or anxiety is a common mood and anxiety disorders, rapid heart rate, breathing, sweating, shaking, tense muscles, and butterflies in the stomach and if you're in a situation then the first thought is to disappear.
To assess yourself and see what is keeping this problem may or may not be easy because there are many factors which are more dominant one day, but then the next day something else is, so you will need some help to understand the main cause of why you feel this way.
That's difficult to do by yourself so a counsellor would be able to determine the basic cause and help you using CBT.
This can be done by seeing the school/uni counsellor or by booking an appointment with your doctoer who could then refer you onto a psychologist.
I realise finance maybe strained so ask your doctor about the 'mental health plan' this entitles you to 10 free sessions per year.
You are not alone when you feel like this, many of us feel exactly the same.
Geoff.
