I use Pokertracker to track my money made (lost) in the blinds to see if I'm too tight/too loose with them, keeping track of my opponents (Playerview is best for that;
www.playerview.net), and for posting hands on 2+2. I have a little notebook where I write my hand down that I just played that I would like to post, then I go back into PT and find it. As for being confused, I don't think there's ever a point in poker when you can "know it all," only have a fundamental knowledge of the game and to be very situationally aware. It's not about applying rules or maxims to certain situations, it's about thinking your way though the incomplete information available and doing what you think is best. As you get better and glean more info from the players and understand the fundamentals better, you'll make fewer mistakes. Hang in there, it can only get easier. We've all been lost (many, including myself, still are).