"My problem is that I have no clearly planned plan for the training."

Big mistake number 1...

"my goal is basically to ride as fast as I can during the time I have for that ride..."

Big mistake number 2...



I recommend getting Joe Friels "The Cycling Training Bible" to start off. He points out why the two things I quoted are the biggest mistake cyclists make.

http://www.amazon.com/The-Cyclists-T.../dp/1934030201