My name starts with a J. This one time i went to starbucks, i was 16, and stuttered on my name "J-j-j-Jessica." ...They fucking wrote it just like that on my cup. I'm 26 now and I can say it like 90% fluently..I know what you mean, the racing heart, the freeze up. I developed social anxiety and asked my doc for help. Im currently on anxiety meds and they help with my confidence so i don't freeze up like i did. I still say Uhh before my name but its cool.