what is the MATH of life?

Just finished reading The three mistakes of my life by Chetan Bhagat, an author from India. (one night @the call center) Great book to read.
The sentences that I highlighted are : "Figuring out the math of Life is important.
Well what is that? Who you are, what do you want versus what people expect from you. And how to keep what you want without pissing off people too much. Life is an optimisation problem with tons of variables and constraints."

So if you would look at your life as a math problem, where is your optimisation and where are the variables and constraints and how do they play into your decisions?
What steps would YOU take the optimise your life? Have you ever thought about sitting down and creating your ideal life. That is optimisation! That really addresses who you are and what you want. Consider it and take time this weekend to think about even one aspect of your IDEAL life.

Take that step into action!

Do you also find yourself dallying a bit just before you go on a trip, kind of hanging around, checking everything one more time, maybe reluctant to actually step out of the house and into the cab or the car and go off into the unknown. Or when you have to jump across a stream, really thinking about that last step that will propel you into the jump. Or step into that airplane, are you actually going on the flight now?
There always is this split second moment in which you realize that you actually have to commit, that there is no going back. This is it. You are making the final and irrevocable commitment to the action.

Once done though, it releases energy and there is motion and action forward. So step through the inaction, through the confusion, through the hesitation and move yourself into action.

What is one thing can you do today , right now, that moves you into action. That moves you away from that hesitant phase? What will it help you achieve today?