$10 Million Dollars - IQ

I can remember some things as if it was yesterday and then I can't remember other things for $10 million dollars. Why is it that certain things get locked away in my memory bank and no matter what I do I cannot wash them out? I was recently told that I had a very high IQ, I don't know if they knew what they were talking about or not. But I do kind of remind myself of one of those people that is super smart but eventually analyzes and out thinks everything to death, literally. It's like I cannot turn my mind off even what I want to so desperately? When I say I will do something I will do it or die. Sometimes it takes a long time.