6s are the type that suffers the most from anxiety, and they have a lot of trust issues. If someone they trust a lot betrays them, they might not ever let anyone else get that close to them emotionally again. They're also known for having a lot of indecision when they try to type themselves, and the fact that they usually get any type except 6 when they take a RHETI test doesn't help much.
Another thing, 6s tend to have a golden relationship with their father/father figure in their life.
that's my personal experience about 6s anyway. maybe read over some 6 threads if your still interested?
My official guess for your type: 6w5-9w?-4w?