Jessica Pan hated social gatherings - she cried when her friends threw her a surprise birthday party, and was even too scared to give a speech at her own wedding. Jessica was a hardcore introvert - and it was making her sad.  
Extroverts find it easier to experience the joy that comes with social interactions - but that doesn't mean introverts are doomed to lives that lack such fun. Jessica read some research that suggested introverts can learn to enjoy being more outgoing - so decided to turn her social life around. 
You can read more of Jessica's story in her book: Sorry I'm Late, I Didn't Want to Come: An Introvert's Year of Living Dangerously. See omnystudio.com/listener for privacy information.