My Crazy Thoughts

Since I was a kid I always seem to find myself talking to myself most of the time.
No, I don't talk out loud, that is crazy. I just find myself talking to myself in my head.
In a way like thinking. I am in every way not a genius or way too smart, I am just normal.
There were a lot of things in my childhood that I wished didn't happened or that I wished I forget.
Thoughts seems to occupy me a lot even when I am busy or in the middle of something.
Many times I shake my head just to get off the cloud that I am on.
Do I seem crazy? But I feel like there is something more I have to give and do in this life that still I haven't done yet.

What is it I asked and try to find out everyday!