Hi everyone.  I (26F) have a VERY bad habit of laughing and smiling in tense situations.  It has been an issue all my life, and i got in trouble a lot as a kid because of it.

Well, I just got yelled at again for it from my parents, and even though I tell them It is a nervous tick, they get annoyed and yell at me anyway.  I get how it could be annoying, and they don’t really get how it could be nerves.  

Any advice on how to control it or at least explain it to people?  I’ve never been in big trouble, but I fear what would happen if I got pulled over by the cops.  (Nervous laughter) 🥲Thanks!