I sucked my first finger in public until I was fourteen years old, with a kleenex in my hand as a substitute blanket when I could not take my baby blanket with me to school. Just
imagine that as a teenager.
chew my nails, and I will need a rubber nightguard in my mouth over my teeth all my life to protect my teeth because I chew all night while I sleep.

I am so glad I am not alone.