I understood your reasons. All sound reasonable and I agree with most of them. But, I have some stupid questions:

• did you always planned your life ? Did you have more success if so or not ? (I always planned as much as I could in my life and failed miserably most of the time. Others didn't, they live like butterflies and they seem to be happier than me. It's so strange. I observed that it doesn't matter what my plans are, life just flows. I should enjoy life in each different way, not only in my desired and limited way. )
• the well planned agenda was more successful than random agenda played well ? I thought so, but I was wrong. Randomness is quite important in life. And brings more joy than too much order.
  There are some "laws of nature" that doesn't have anything to do with our perspectives, plans, desires, fears. Life is flowing disregard everything we want. We just have to understand some of this and accept it. If you can accept it do it with a good feeling, not with stubbornly.

My simple view: life is like a powerful river. We are like some random small fish. We just need to understand our place and use the river for our needs. Never swim against it for too long.

Please, don't take it as a critical comment. :)