How can I confidently make mistakes in front of other people?

Life has no meaning to me. I'm 21 and face a plethora of social anxiety, Christmas party today and I beat myself up over things that I said. My mind did not feel at peace for the duration of the Christmas party. It was always the on-edge feeling. Never calm. I have lost control of my life. I can't hang out with my friends like I used to b/c I'm afraid to take criticism, for with the slightest joke, it seems that I react way too much. Every joke or tease feels like a slap to the face. In essence, I can't take things sportively. I can't hang out with my peers or anyone other than my family, because I can't view anyone else with a sense of equanimity. It is taking a toll on me, mentally. I think all of this is due to immense boredom with life. Do you think my social anxiety is a manifestation of boredom, that I do not like to be in the company of others for lack of interest, or a result of a genuine fear that I will chide myself for all the mistakes I make in front of people?