My daughter can stay up for hours at a time and happily sleep for twenty. She has OCD, with a very dominating, aggressive personality - only people she is close to bear the brunt, so it is felt at varying degrees according to her emotional attachments. Once she loses it - thats it, only blessing is that she is not physically aggressive. To control her she has to be shouted down, and she has a huge, deep voice so it is not easy to shout her down. And she is NOT remorseful. She will seldom listen to advice. With people she doesn't know well, she is good as gold. She is confident (over), and will not be made to do what she does not want to do.
Sometimes I get anxious enough to start having palitations.

She is on Paxil CR 37.5 once a day, but I do think we need to evaluate her for something else.

She is dyslexic. Severly so.
She was adopted in a very bad condition at six seven weeks. She weighed 20% less than her birth weight.

Now she is almost 19, very bright in interpreting situations or problems.
But her attitude to life is often that of a fourteen year old.

She is truthful to the point of cruelty - "I am not going to lie". It is all either black or white.

Trouble is that the doctors don't see all this. There she is highly popular.

I want to throw up my hands up.

All I can hope for is that she learns from experience. That has begun to happen.