life is unpredictable.. or is it?

Lately I've had some time to think about things.. and i wonder :
Does life ever actually go the way you plan?
Do the wishes that you make on shooting stars, Birthday candles, and penny fountains ever come true?? How long should we keep wishing? or do we eventually STOP wishing? Do people remember every single wish they have ever made?? When we say to ourselves, " whatever is meant to be will happen!"... does it?
While some may try to aim for the stable, predictable life, others live day to day never knowing what the day will bring!
i aim to have the best of both worlds, i like routine, I'm not the biggest fan of change, however, that predictability, although nice... can be a bit boring. ultimately, that's why people take vacations i suppose...to change scenery, plans, life, at least for a little while. But sometimes i feel envious of ones who do not want plan ANYTHING and just see what happens and take life as it comes. I admire that and would like to acquire some of that philosophy.