I realized that my thinking pattern differs from others when I was really young, but I kept most of my thoughts for myself.
When I went to middle school, I just thought I was smarter than the others, but in my final year at high school I realized that it wasn't just that. A friends little brother died in an accident and she cut the friendship because I didn't get what the big deal was.
Still in high school a girl with a blank personality (she just asapted everyone and anything n order to survive), tried to befriend me, and I painted her little mind-canvas in my favourite images. She went totally mad and adapted mental illnesses I set on display for her, she is now in therapy.
One of my parents got diagnosed with a deadly illness during my finals, and I didn't feel sorry for them at all.
They had sent me off to therapy before, that ended up on my psychologiyst signing me up for a analysis at the nearby psychiatry, with no outcome either. (Mostly because I am really not as stupid not to see through ICD-10 classification tests, seriously.)
I went through some relationships, to find out, if there was someone out there who would think a little more like me. Nope.
I moved away and got friends with a psychiatry student in his final year.
He diagnosed me, and that's it.